- NLM Digital Collections - The earth the home of manPublication: Washington : [publisher not identified], 1894... in the constant inter-action of vitality, the bee carries pollen from blossom to blossom, whereby the clover is fertilized and made more vigorous, and yields more honey to tempt the bee, and thus the clover is gradually made a ...
- NLM Digital Collections - Mind and heredityPublication: Princeton : Princeton University Press, 1923... the hive. The varied tasks of the worker bees of pollen- and nec- tar-gathering, comb-building, larva-feeding, cleaning, ventilating, etc., mostly cease, and 13 14 MIND AND HEREDITY a great crowd of bees gathers about the queen cell, from which is ...
- NLM Digital Collections - Sex, for parents and teachersPublication: New York : The Macmillan Company, 1921... workers prepare the comb and bring in the pollen and honey; they feed the young bees and seal them up when the time comes ... valuable for home study 26 Artificial selection 143 Bees 20 Bibliography 187 Birds: carry pollen 9 courtship of 33, 38 nests of 32 ...
- NLM Digital Collections - Familiar lectures on botany, practical, elementary, and physiological : with an appendix ...Publication: Hartford : Huntington, 1836... though an animal production, is made by the bees from the pollen of plants. Camphor has much analogy with the ...
- NLM Digital Collections - On the origin of species by means of natural selection, or, The preservation of favoured ...Publication: New York : D. Appleton and Company, MDCCCLX... I examined had been effectually fertilised by the bees, accidentally dusted with pollen, having flown from tree to tree in search ... of the corolla, so as to push the pollen on to the stigmatic surface. Hence, again, if humble-bees were to become rare in any country, it ...
- ... fertilized, they slowly develop into seeds. The upper Pollen earned from another (lower by, a bee to the top of pistil • .Pollen containing a / sperm' or male cell Pidil fSUraeny ...
- NLM Digital Collections - Biological formsPublication: New Haven : Osborn Zoölogical Laboratory, Yale University, 1922... the various substances from the flowers, the worker Bees incidentally mix the pollen of various flowers, and thereby 128 Biological Forms. ... tion to the nectar for honey manufacture, the Bees gather great quantities of pollen grains. These make a very rich food, and ...
- NLM Digital Collections - On the rôle of insects, arachnids, and myriapods as carriers in the spread of bacterial and ....Publication: Baltimore, Md., U.S.A. : Printed by the Friedenwald Company, [1899?]... sect, and the latter carries them about as bees do pollen. In the last set of experiments, he only ...
- NLM Digital Collections - A compendium of the course of chemical instruction in the Medical Department of the ...Publication: Philadelphia : Auner, 1840-43... bees-wax was supposed to arise from the pollen of flowers swallowed and excreted by bees; but it has been proven that the wax ...
- NLM Digital Collections - Lectures on clinical medicine (Volume 1)Publication: Philadelphia : Lindsay & Blakiston, 1873... eyes have seen, as it were, the industrious bee return charged with honey and pollen to build the hexagonal cells; they have seen a bee larger than the rest surrounded by general solicitude, ...
911 results