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Category: Biology & Life Sciences, Biology

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Rachel Louise Carson, noted biologist and environmentalist who fascinated readers with three books on the wonders of the sea and awakened the American public to the dangers of pesticide misuse with a highly controversial bestseller, was born on May 27, 1907, in Springdale, Pennsylvania. She was interested in writing at an early age and submitted a number of juvenile stories, poems, and essays to leading youth magazines. Rachel Carson's first book, Under the Sea Wind , attracted little notice on its appearance in 1941. However, her second book on the sea, The Sea Around Us (1951), remained on the best-seller lists for eighty-six weeks, was eventually translated into thirty languages, and received many awards.

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Whether they are in the circus or the zoo, in the field, the stream or the air, on a dinner plate or an altar, animals have fascinated humanity from its earliest origins. Selected from Toronto Public Library’s rare books, original art and postcard collections, this survey features prints from Audubon’s Quadrupeds , images of wild and domestic animals as well as animals at play. Yes, animals are allowed in the library-roaming through thousands of pages, over hundreds of years.

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Linus Pauling and the Race for DNA: A Documentary History is comprised of three large sub-sections, each of which tells the story of the discovery of the double helix in a different way. Navigation between sub-sections may be achieved either through use of the links provided on the site homepage or through use of the links located in the header of each page within the site. Narrative - The first section - a thirty-four "chapter" Narrative - recounts the saga of the discovery from the largely unknown viewpoint of the major "loser" in the race: the phenomenal American chemist Linus Pauling (1901-1994). There are three components to each page of the Narrative.

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History of Medicine In 1816, an Englishwoman still in her teens, Mary Shelley, conceived the story of a scientist obsessed with creating life. Shelley's scientist, Victor Frankenstein, succeeds. But while Frankenstein's creature can think and feel, he is monstrous to the eye. Spurned by all, including Victor Frankenstein himself, the embittered creature turns into a savage killer. In 1818, Shelley's story was published as Frankenstein; or, The Modern Prometheus . This story — both in the original novel and shaped into new forms, such as plays, films, and comics — has captivated people ever since, exposing hidden, sometimes barely conscious fears of science and technology.

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The History of Medicine Division of the National Library of Medicine has a rich collection of illustrated anatomical atlases dating from the 15th to the 20th century. The Historical Anatomies on the Web Project has been designed to broaden access to this collection by providing high-resolution downloadable scans of selected important images from the atlases. Atlases and images have been chosen for their historical and artistic significance by the project's content coordinator, Michael North. Important images may be omitted if the atlas is damaged or fragile, or if the work is bound in such a way as to impede high quality scanning. A priority has been placed upon scanning the earliest and/or the best edition of a work in Library's possession. The scans generally omit text.

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History of Medicine Home > From 'Monsters' to Modern Medical Miracles Home > Embryology and Classification of Conjoined Twins Embryology of Conjoined Twins Identical twins develop when a single fertilized egg, also known as a monozygote, splits during the first two weeks of conception. Conjoined twins form when this split occurs after the first two weeks of conception. The monozygote does not fully separate and eventually develops into a conjoined fetus that shares one placenta, one amniotic sac, and one chorionic sac. Because the twins develop from a single egg, they will also be the same sex. The extent of separation and the stage at which it occurs determine the type of conjoined twin, i.e., where and how the twins will be joined.

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History of Medicine Rewriting the Book of Nature Charles Darwin and Evolutionary Theory Charles Darwin’s vision—“from so simple a beginning, endless forms most beautiful and most wonderful have been, and are being evolved”—now forms the foundation of the biological sciences. Radical in sweep, Darwin’s idea of naturally innovating and endlessly changing webs of life undercut all previous sciences. Darwin was instantly seen as a potent sign of a new science, a new way of conceiving the world. His theory was an immediate threat not just to those who were wedded to an older conception, but to all who relied on a given and settled order for meaning and for power.

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American Environmental Photographs, 1891-1936 Browse Collection by: Collection Connection Classroom resources for teachers About This Collection The images in the American Environmental Photographs Collection were created by faculty, staff, and students in the Department of Botany at the University of Chicago from the 1890s to the 1930s. Among the most active photographers contributing to the collection were Henry C. Cowles, George D. Fuller, George E. Nichols, Charles J. Chamberlain, Ira B. Meyer, Paul J. Sedgwick, William J. Cribbs, and Ezra J. Kraus. The earliest photographs in the collection were taken in 1891 in the arid desert landscapes of California, Arizona, Utah, and Nevada.

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313 reads