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Heinrich Kuhl (1797-1821) and Johan Conrad van Hasselt (1797-1823) studied natural history and medicine respectively at the University of Groningen, The Netherlands from 1816 till 1820. During their studies they travelled widely through Europe, and met with famous scientists of the day in Germany, England and France. Due to their extraordinary qualities they were, in 1820, appointed by the Dutch government as the first delegates of the newly founded Commission for the Study of the Natural Sciences of the Netherlands East Indies to study the natural history of that region. Unfortunately their promising lives were cut short by their premature death.This biography describes their lives, their considerable accomplishments in Europe and the Dutch East Indies, and their place in the scientific community at the time, especially in zoological systematics. The results of their systematic studies are shown to be still relevant to present-day science.
A tribute to the pioneers of oil exploration in Indonesia (1850-1898). Using authentic reports, diaries, relevant texts, personal notes and pictures, Poley brings to life the heroic efforts of Reerink (Cheribon, W. Java), Zijlker and Kessler (Deli, NE Sumatra), Stoop (Surabaya and Rembang, E Java), Menten (Kutei, E Kalimantan), Kessler and IJzerman (Palembang, SE Sumatra), and their crews. They faced almost insurmountable odds in many locations: an impenetrable, cruel jungle, an inclement climate, tropical diseases, technical mishaps, financial restrictions, and, last but not least, government and legal constraints. There was no geological science to guide them, and drilling technology was still in its infancy. Yet it was their vision and perseverance which finally put Indonesia on the world map of oil-producing nations, and which contributed materially to the development of today's life of luxury. Much of the present text and several of the pictures are here presented for the first time to the general public.
" . . . . . . Nature has something more in view than that its own proper males should fecundate each blossom. " Andrew Knight Philosophical Transactions, 1799 Sterility implicating the male sex solely presents a paradoxical situation in which universality and uniqueness are harmoniously blended. It maintains a built-in outbreeding system but is not an isolating mechanism, as male steriles, the "self-emasculated" plants, outcross with their male fertile sibs normally. Both genes (nuclear and cytoplasmic) and environment, individually as well as conjointly, induce male sterility, the former being genetic and the latter nongenetic. Genetic male sterility is controlled either exclusively by nucl...
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In the first and second centuries CE a small elite of affluent slaves and wealthy free persons prospered in Rome amidst a mass of impoverished free inhabitants and impecunious enslaved people. Roman Inequality reconstructs the role that slaves and women played in this economy.
Philippa Levine is the Mary Helen Thompson Centennial Professor in the Humanities at the University of Texas at Austin. Her books include Prostitution, Race and Politics: Policing Venereal Disease in the British Empire, and The British Empire, Sunrise to Sunset. --
The global triumph of Mendelian genetics in the twentieth century was not a foregone conclusion, thanks to the existence of graft hybrids. These chimeral plants and animals are created by grafting tissue from one organism to another with the goal of passing the newly hybridized genetic material on to their offspring. But prevailing genetic theory insisted that heredity was confined to the sex cells and there was no inheritance of characteristics acquired during an organism’s lifetime. Under sustained attacks from geneticists, scientific belief in the existence of graft hybrids slowly began to decline. Yet ordinary horticulturalists and breeders continued to believe in the power of grafting...