Transactions of the American Microscopical Society, Volume 28American Microscopical Society, 1908 - Microscopy |
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American appendix Arrhenurus August August 21 blue green body carbon coenobia coenobium collections color condenser convex daughter described diameter dorsal dorsal enclosed area dorsal side dorsal view dwarf male colonies eggs feces female figures flagellum fourth epimera fourth leg G. D. Nourse genital area genital wings genus globator hairs humps hyaline appendage Hydrachniden individuals inverted Lake Wingra lamp lateral view Lemonweir River length lens lenses light Looss magic lantern Marshall material measurements megalurus micro Microscopists miracidium mirror narrow Nebraska object ocular oval ovum pair palpus parasite petiole Ph.D plate Pond posterior lateral PROF projection microscope R. H. Wolcott reproductive cells Rocheport Schistosoma haematobium screen seen September shows slightly Society somatic cells species specimens sperm spheres spermatosphara stain structure subgenus surface tion ventral side ventral view Volvox Washburn county weismannia width young colonies Zool
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Page 58 - WRIGHT— Optical Projection : a Treatise on the Use of the Lantern in Exhibition and Scientific Demonstration. By LEWIS WRIGHT, Author of ' Light : a Course of Experimental Optics '. With 232 Illustrations.
Page 210 - Siemon was an active and successful business man; he was fond of study and was held in high esteem by all who knew him.
Page 222 - ... issue of the Transactions. The income of said fund shall be used exclusively for the encouragement and support of original investigations within the scope and purpose of this Society. The principal of the fund shall be kept inviolate. ARTICLE VIII The election of officers shall be by ballot. ARTICLE IX Amendments to the Constitution may be made by a two-thirds vote of all members present at any annual meeting, after having been proposed at the preceding annual meeting. BY-LAWS ARTICLE I The Executive...
Page 7 - I find myself so pressed by age that I can neither read nor write without those glasses they call spectacles, lately invented, to the great advantage of poor old men when their sight grows weak.
Page 50 - Essays on the microscope; containing a practical description of the most improved microscopes: a general history of insects, their transformations, peculiar habits, and...
Page 10 - I will add that, then which nothing can be more pleasant for great men, and Scholars, and ingenious persons to behold; That in a dark Chamber by white sheets objected, one may see as clearly and perspicuously, as if they were before his eyes, Huntings, Banquets, Armies of Enemies, Plays, and all things else that one desireth. Let there be over against that Chamber, where you desire to represent these things, some spacious Plain, where the Sun can freely shine: Upon that you shall set Trees in Order,...
Page 42 - Object* that are not too opake: as it shews them much larger than can be done any other Way. There are also several Conveniences attending it, which no other Microscope can have; for the weakest eyes may use it without the least Straining or Fatigue: Numbers of People may view any Object together at the same Time, and, by pointing to the particular Parts thereof, and discoursing on what lies before them, may be able better to understand one another, and more likely to find out the Truth, than when,...
Page 8 - Conv«x; and the dish must be perfectly polished. But if we seek for Concave Spectacles ; let there be an Iron-ball, like to those we shoot with Gun-powder from the great Brass Canon : the superficies whereof is two, or three foot about: Upon the Dish, or Ball there is strewed white-sand, that comes from Vincentia, commonly called Saldame, and with water it is forcibly rubbed between our hands, and that so long until...
Page 181 - Goddard has recently (1907:195) reported a case of this parasite from China ; the material was referred to a committee and that part of the report of the Investigation Committee which deals with the eggs reads as follows: Eggs (possibly immature). Size not measured, about a half that of Ascaris lumb. Shell, very thin walled. Contents clear, small and granular, well marked nucleus in center. Nearly spherical. No operculum observed. An error is certainly present here, for the size of these ova would...
Page 131 - ACKNOWLEDGMENTS To Dr. Robert H. Wolcott, the American hydrachnologist, the author is deeply indebted for the use of his private library and collections and for continued advice and assistance. Doctor Henry B. Ward, head of the Department of Zoology of the University of Nebraska, by his interest and aid, has made this study of the American Arrhenuri possible. The author wishes to express most sincere thanks to both. IV BIBLIOGRAPHY DADAY, E. VON. 1897. Wassermilben. Wissensch. Erforsch. Balatonsees,...