Results: 1529 books
Sort By:
NewTrending

Florulae Insularum Australium Prodromus

Georg Forster

"Florulae Insularum Australium Prodromus" by Georg Forster is a scientific publication written in the late 18th century. This work serves as a preliminary catalog of plant species found in the Australian islands and encompasses extensive descriptions and classifications of various plant genera and species. The book aims to contribute to the field of botany by presenting new findings and observations from Forster's explorations. The opening of the publication reveals Forster's intent to document the rich flora of the Southern Hemisphere, specifically focusing on plant species he encountered during his travels. He discusses challenges faced in publishing his findings, such as misattribution of species and the obstacles in acquiring necessary resources for accurate botanical descriptions. The portion includes an elaborate introduction followed by a systematic listing of plant species organized by their respective classes, showcasing Forster's detailed approach and commitment to advancing botanical science. (This is an automatically generated summary.)

Metabolic Adaptation to Climate and Distribution of the Raccoon Procyon Lotor and Other Procyonidae

John N. Mugaas

"Metabolic Adaptation to Climate and Distribution of the Raccoon Procyon Lotor and Other Procyonidae" by John N. Mugaas, John Seidensticker, and Kathleen P. Mahlke-Johnson is a scientific publication written in the early 1990s. This work explores the metabolic adaptations of the North American raccoon, "Procyon lotor", and its distribution across various climates, comparing it to other members of the Procyonidae family. The authors aim to uncover how the raccoon, as a climate generalist, has developed unique physiological traits that enable it to thrive in diverse environments, unlike its more specialized relatives. The opening of this study introduces the research problem and sets up the context for understanding raccoon evolution and adaptability. It describes the history of the procyonid family, its origins, and the climatic challenges faced by its members. The authors propose a hypothesis suggesting that "Procyon lotor" has developed distinct metabolic characteristics that have allowed it to inhabit a broader range of habitats and climates compared to other species in the family. They outline their methodological approach to investigating various metabolic parameters of the raccoon and its relatives, indicating a thorough examination of the interplay between physiology and environmental adaptation. (This is an automatically generated summary.)

A Check-List of the Birds of Idaho

M. Dale (Martin Dale) Arvey

"A Check-List of the Birds of Idaho" by M. Dale Arvey is a scientific publication written in the mid-20th century. The book serves as an initial compendium for the avifauna of Idaho, providing an organized list of bird species observed in the state. The work highlights the lack of comprehensive literature on the topic and aims to encourage further research and documentation in ornithology. The content of the book consists of an extensive checklist of 292 bird species found in Idaho, categorized by their taxonomic status and geographic distribution across the state. Each entry includes references to occurrence, habitat, and the commonality of the species as reported by various ornithological studies and fieldwork conducted over a period of five years. The checklist serves both as a resource for amateur birdwatchers and professionals alike, and as a foundational text for future studies aimed at understanding and expanding knowledge about Idaho's bird populations. (This is an automatically generated summary.)

Encyclopaedia Britannica, 11th Edition, "Foraminifera" to "Fox, Edward" - Volume 10, Slice 6

Various

"Encyclopaedia Britannica, 11th Edition, 'Foraminifera' to 'Fox, Edward'" by Various is a scientific publication written in the early 20th century. This work serves as a comprehensive reference that spans various topics related to zoology, particularly focusing on classifications and studies of organisms, including foraminifera, a significant group of protozoans. The opening portion introduces foraminifera, detailing their classification and anatomical features through contributions from notable scientists such as A. D'Orbigny and F. Dujardin. Early discoveries concerning these microscopic creatures are discussed, along with their reproductive biology, shell composition, and ecological distribution. Illustrations further enhance the understanding of the physical characteristics of various genera and species, providing a foundational insight into the complex world of foraminifera as part of broader biological studies. (This is an automatically generated summary.)

Notes and Letters on the Natural History of Norfolk - More Especially on the Birds and Fishes

Sir Browne, Thomas

"Notes and Letters on the Natural History of Norfolk" by Sir Thomas Browne is a scientific publication written in the late 17th century. The work details Browne's observations and notes concerning the fauna of Norfolk, with a particular emphasis on birds and fishes in the region. This publication showcases Browne's intricate observations, contributing significantly to the natural history of England during a pivotal period of scientific awakening. At the start of the text, the editor introduces Sir Thomas Browne as a pioneering figure in natural science, highlighting his efforts to document the natural history of Norfolk based on his personal observations. The opening portion presents a rich tapestry of birds found in the area, with Browne noting their migratory patterns and various species, referencing both specific birds and their significance in the ecosystem. His firsthand accounts include descriptions of the golden eagle, ospreys, and other fowl, interspersed with notes on their behaviors and habitats, conveying Browne's deep appreciation for the natural world and its complexities. (This is an automatically generated summary.)

Five Natural Hybrid Combinations in Minnows (Cyprinidae)

Frank B. (Frank Bernard) Cross

"Five Natural Hybrid Combinations in Minnows (Cyprinidae)" by Frank B. Cross and W. L. Minckley is a scientific publication written in the early 1960s. This book explores the occurrences of natural hybridization among several species within the minnow family (Cyprinidae) in North America, mainly focusing on various hybrid combinations observed during a drought in Kansas and Arkansas. The content of the book details five distinct hybrid combinations, including those between species such as "Chrosomus erythrogaster" and "Notropis cornutus frontalis", and observes their unique physical traits compared to their parental species. The authors discuss how environmental conditions, particularly a period of severe drought, may have facilitated the hybridization process due to increased spawning opportunities in concentrated habitats. Each hybrid is described in terms of anatomical characteristics, such as body structure, pigmentation, and organ morphology, emphasizing the intermediate nature of these hybrids and providing diagnostic traits for identification. The study contributes to understanding the implications of hybridization on fish diversity and ecology in changing environments. (This is an automatically generated summary.)

Man, Past and Present

A. H. (Augustus Henry) Keane

"Man, Past and Present" by A. H. Keane is a scientific publication written in the late 19th century. This comprehensive work delves into the evolutionary history of humanity, exploring the physical and cultural development of various human groups from prehistoric times to the present. The primary focus of the book is on the classification of human types and the factors influencing their development, particularly the role of environment and migration. The opening of the book presents foundational concepts regarding human evolution, specifically the idea that all modern human varieties descend from a common ancestral form originating during the Pleistocene era. Keane discusses early migrations, anatomical findings related to pivotal fossils, and the ongoing debates about monogenism and polygenism among anthropologists. He emphasizes how the existing human varieties are the outcomes of adaptations to different environments over extensive periods, setting the stage for a meticulous examination of mankind's past and the complexities of its classification in the chapters to follow. (This is an automatically generated summary.)

Aphorisms and Reflections from the works of T. H. Huxley

Thomas Henry Huxley

"Aphorisms and Reflections from the works of T. H. Huxley" by Thomas Henry Huxley is a collection of philosophical and scientific observations written in the early 20th century. This compilation, selected by Henrietta A. Huxley, draws from Huxley’s extensive body of work, providing insights into various topics including science, morality, and society. The collection serves as an accessible introduction to Huxley’s thoughts, particularly aimed at individuals who may seek wisdom but not wish to engage with his more exhaustive writings. The opening portion of the work presents a preface by Henrietta A. Huxley, who outlines her intention to gather diverse passages from T. H. Huxley's writings for the benefit of readers unfamiliar with his contributions. She expresses a desire to capture the essence of his ideas on key subjects, such as the importance of truth, the role of science in shaping moral conduct, and the fundamental principles guiding human existence. Through this collection, Henrietta aims to preserve her husband's legacy while inspiring an appreciation for scientific thought and the beauty of nature among a broader audience. (This is an automatically generated summary.)

House Rats and Mice

David E. (David Ernest) Lantz

"House Rats and Mice" by David E. Lantz is a scientific publication written in the early 20th century. This work provides an in-depth look at the prevalent issues caused by house rats and mice, detailing their destructive habits and the significant economic impact they have on agriculture and food supply. The book aims to educate readers on the importance of controlling these rodent populations through organized efforts and effective pest management strategies. The publication outlines the various ways rats and mice destroy property, contaminate food, and spread diseases, presenting alarming statistics about the economic losses they cause annually. Lantz provides practical advice for protecting food supplies, constructing rat-proof buildings, and employing traps and poisons effectively. Furthermore, he emphasizes the necessity of community involvement and coordinated efforts to combat these pests, alongside advocating for the protection of natural predators of rodents. Overall, the book serves as both a comprehensive guide and a call to action for homeowners, farmers, and communities to unite in the effort to eradicate these troublesome pests. (This is an automatically generated summary.)

Seaside Studies in Natural History. Marine Animals of Massachusetts Bay. Radiates.

Elizabeth Cabot Cary Agassiz

"Seaside Studies in Natural History: Marine Animals of Massachusetts Bay" by Elizabeth C. Agassiz and Alexander Agassiz is a scientific publication written in the late 19th century. This work focuses on the diverse marine animals found along the Massachusetts coast, particularly emphasizing the Radiates, a group of animals primarily inhabiting the sea. The authors aim to provide a popular yet informative overview of these creatures, combining accessible descriptions with scientific classification to enlighten both general readers and those seeking deeper knowledge. The opening of the book sets the stage for an exploration of the Radiates, detailing how these animals have only recently begun to attract significant scientific attention due to their complex life cycles and the intricacies of their structures. It highlights the historical context of research into Radiates, referencing early naturalists and their contributions, while also establishing the foundational principles that guide the classification of these creatures. The authors emphasize their intent to provide a vivid and thorough understanding of common marine animals along Massachusetts Bay, with an eagerness to share the elegance and intricacies of this often-overlooked branch of natural history. (This is an automatically generated summary.)

Les abeilles

Jean M. Pérez

"Les abeilles" by Jean M. Pérez is a scientific publication written in the late 19th century. The book serves as an accessible introduction to the study of bees, emphasizing their ecological significance, social structures, and the various species that exist. The author, a professor at the University of Bordeaux, aims to educate readers about the natural history, biology, and behavior of these fascinating insects. At the start of the publication, Pérez outlines the reasons for humanity's longstanding interest in bees, detailing their uniqueness, importance in agriculture, and the allure they hold in various cultures and mythologies. The introduction discusses the transition from wild to domesticated bees, the rise of apiculture, and the complexities of bee society, including the roles of different types such as the queen, workers, and drones. It sets the stage for a comprehensive exploration of bees, their physical structures, and their remarkable behaviors as social insects. (This is an automatically generated summary.)

Wood and Forest

William Noyes

"Wood and Forest" by William Noyes is a scientific publication written in the early 20th century. This work serves as a detailed examination of American woods, including their structure, properties, growth, and uses. The book is particularly beneficial for students, educators, and woodworkers interested in understanding the fundamentals of wood as a material within both ecological and practical contexts. The opening of the work begins with a foreword where Noyes acknowledges contributions from various individuals who assisted in refining the text. He outlines the organization of the book and its purpose as a companion to his previous volume, “Handwork in Wood.” The first chapter dives into the structure of wood, teaching readers about its classification among plant life, including gymnosperms and angiosperms, and detailing the unique characteristics of wood as a living organism. Noyes emphasizes that understanding wood’s structure is essential for its effective use in woodworking, laying a solid foundation for the more practical information that follows in later chapters. (This is an automatically generated summary.)

A Review of the Middle American Tree Frogs of the Genus Ptychohyla

William Edward Duellman

"A Review of the Middle American Tree Frogs of the Genus Ptychohyla" by William E. Duellman is a scientific publication written in the early 1960s. The work focuses extensively on the anatomy, morphology, and ecological characteristics of the Ptychohyla frogs found in the cloud forests of Middle America. It likely serves as a vital resource for researchers and enthusiasts interested in the taxonomy and biology of these specific hylid frogs. The opening of the publication lays the groundwork for a detailed analysis of the Ptychohyla genus, highlighting the obscure status of many species due to limited previous research. Duellman discusses his own efforts in collecting specimens, recording breeding calls, and the challenges faced in studying these frogs in their natural mountainous habitats. He provides insight into the methodology of his research and the background of prior studies, indicating the need for a comprehensive overview of the species known up to that time, as well as the various life history aspects that remain under-explored. (This is an automatically generated summary.)

Dragons of the Air: An Account of Extinct Flying Reptiles

H. G. (Harry Govier) Seeley

"Dragons of the Air: An Account of Extinct Flying Reptiles" by H. G. Seeley is a scientific publication written in the early 20th century. The book explores the fascinating subject of flying reptiles, also known as pterosaurs, covering their anatomy, evolution, and the role they played in Earth's history. Seeley, an accomplished geologist, draws upon his extensive research and discoveries to unravel the mysteries surrounding these once magnificent creatures. The opening of the work introduces the author’s background and his lifelong fascination with extinct flying reptiles, ignited during his time as a law student attending lectures by Sir Richard Owen. He recounts his investigations spanning over a decade, where he collected numerous fossils, contributing significantly to the understanding of these ancient animals. The narrative sets a tone of enthusiasm and reverence for the natural world, leading into a detailed discussion of the complexities of reptilian anatomy and their unexpected attributes compared to modern animals, establishing the groundwork for the comprehensive exploration that follows. (This is an automatically generated summary.)

Contagious Abortion of Cows

Ward J. MacNeal

"Contagious Abortion of Cows" by Ward J. MacNeal is a scientific publication produced in cooperation with Herbert W. Mumford and published in the early 20th century. The work serves as a bulletin from the University of Illinois Agricultural Experiment Station, addressing the serious issue of contagious abortion in cattle, a disease recognized for its economic impact on the livestock industry. The text reviews the bacterium responsible for the disease, its transmission, and offers guidelines for prevention and management. In the bulletin, MacNeal outlines the historical context and scientific investigations into contagious abortion of cows, documenting the identification of the infective bacterium. The publication details the results of various studies that demonstrate the disease's transmissibility and provides a comprehensive account of effective measures for diagnosis, treatment, and eradication of the disease in cattle herds. Practical recommendations include isolating affected animals, disinfecting contaminated environments, and managing the breeding process to ensure herd health and reduce losses due to abortion. Overall, it serves as a valuable resource for farmers and veterinarians seeking to understand and combat this significant agricultural challenge. (This is an automatically generated summary.)

The Systematic Status of Eumeces pluvialis Cope

Hobart M. (Hobart Muir) Smith

"The Systematic Status of Eumeces pluvialis Cope, and Noteworthy Records of Other Amphibians and Reptiles From Kansas and Oklahoma" by Hobart M. Smith is a scientific publication written in the mid-20th century, specifically in 1946. The book focuses on herpetology, detailing the systematic classification of the Eumeces pluvialis species as well as providing significant findings regarding other amphibians and reptiles in the Kansas and Oklahoma regions. In this work, Smith presents research findings from a systematic survey aimed at enhancing the understanding of the Eumeces pluvialis, which involves the classification of distinct geographical populations and their differences. He discusses the notable behaviors, habitats, and morphological characteristics of various amphibians and reptiles, including specific examples like the Eurycea lucifuga, highlighting its first recorded sighting in Kansas. Through detailed descriptions and analyses, Smith enriches the knowledge of herpetological distribution while addressing gaps in previous literature, thereby contributing significantly to the field of natural history and herpetology. (This is an automatically generated summary.)

Eugenics as a Factor in the Prevention of Mental Disease

Horatio M. (Horatio Milo) Pollock

"Eugenics as a Factor in the Prevention of Mental Disease" by Horatio M. Pollock is a scientific publication written in the early 20th century. The book explores the concept of eugenics and its potential application in preventing mental diseases, addressing the rising societal burden of mental health issues during that era. In this work, Pollock discusses the increasing prevalence of mental disease, presenting alarming statistics on the growth of patients needing care in state hospitals. He emphasizes the importance of understanding hereditary factors related to mental health while advocating for proactive measures to mitigate mental disease. Citing environmental influences, he suggests a multi-faceted approach, including improving public mental hygiene, regulating procreation among individuals with mental deficiencies, and promoting better family stock through informed marriage practices. The book serves as both a statistical reflection on mental health issues of the time and an appeal for societal change through eugenics to alleviate the mental health crisis. (This is an automatically generated summary.)

Notes on Philippine Birds Collected by Governor W. Cameron Forbes - Bulletin of the Museum of Comparative Zoölogy at Harvard College, Vol. LXV. No. 4.

Outram Bangs

"Notes on Philippine Birds Collected by Governor W. Cameron Forbes" by Outram Bangs is a scientific publication written in the early 20th century. The book documents various bird species collected during expeditions led by Governor Forbes in the Philippines between 1911 and 1921. The focus is on the identification and classification of these birds, highlighting the contributions made to the field of ornithology. The primary content of this work includes detailed descriptions of numerous bird specimens, many of which are compared to related species and categorized into new forms. Bangs meticulously lists the measurements, characteristics, and geographical locations of the collected birds, contributing valuable information to the scientific community. Among the notable findings are descriptions of five new bird forms, showcasing the diversity of avian life in the Philippine archipelago and enriching the understanding of its ecological significance. This document serves not only as a record of Forbes's collections but also as an essential resource for ornithologists and naturalists interested in the region's bird populations. (This is an automatically generated summary.)

The Postnatal Development of Two Broods of Great Horned Owls (Bubo virginianus)

Donald Frederick Hoffmeister

"The Postnatal Development of Two Broods of Great Horned Owls (Bubo virginianus)" by Donald F. Hoffmeister and Henry W. Setzer is a scientific publication written in the mid-20th century. The book focuses on the specific developmental stages and habits of young Great Horned Owls, utilizing observational data collected from nests at the University of Kansas. It provides detailed insights into their growth, feeding behaviors, and nesting conditions. The publication chronicles two broods of Great Horned Owls observed in 1945 and 1946, detailing their incubation periods, weight growth patterns, and responses to their environment. Daily observations revealed a considerable increase in the weight of the young owls during the first few weeks, followed by a period of fluctuating growth linked to food availability provided by the parent owls. The study highlights their feeding habits, noting the diverse prey items brought to the nest, and concludes with an overview of their readiness to leave the nest at around 45 days of age, marking the transition from dependence to independence. (This is an automatically generated summary.)

Hybridization Between Two Species of Garter Snakes

Hobart M. (Hobart Muir) Smith

"Hybridization Between Two Species of Garter Snakes" by Hobart M. Smith is a scientific publication produced in the mid-20th century, specifically around the 1940s. This document discusses the genetic and morphological characteristics of two garter snake species: "Thamnophis radix" and "T. marciana", primarily within the context of southern Kansas. The focus of the book is on the hybridization between these two distinct species and the implications of their physical variations. In this publication, Smith details the distinguishing features of the two snake species, including their coloration and the structure of their lateral and dorsal stripes. He notes that while the two species maintain their distinct characteristics in various localities, there is a noticeable trend in "radix" individuals to exhibit traits more similar to those of "marciana". The author presents evidence of potential hybrids, exemplified by a particular specimen that displays intermediate characteristics between the two species. By examining various specimens and their attributes, Smith concludes that while hybridization occurs, the species typically retain their distinct identities in overlapping ranges. (This is an automatically generated summary.)