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acre affected Agricultural amount animals appears average barn better Board body breeds building bushels called carried cattle cause cent City College condition contagious corn cost covered cows crop cultivation disease drainage drained early experience fact fall farm farmers feed feet field four fruit gain germs give given grain grass ground grow growth hill horses important inches increase interest keep kind labor land leaves less live loss manure matter means meeting milk Missouri Mycelium nature organs plants pounds practical present produce profitable protection question reason seed sheep shelter side soil species spring surface taken tile usually vaccine varieties weight winter yield
Page 473 - Scoop out a hole in a brick ; put into it some sweet basil, crushed. Lay a second brick upon the first, so that the hole may be perfectly covered. Expose the two bricks to the sun, and at the end of a few days the smell of the sweet basil, acting as a ferment, will change the herb into real scorpions.
Page 456 - Eremacausis (or decay) differs from fermentation and putrefaction, inasmuch as it cannot take place without the access of air, the oxygen of which is absorbed by the decaying bodies. Hence, it is a process of slow combustion, in which heat is uniformly evolved, and occasionally even light. In the processes of decomposition termed fermentation and putrefaction, gaseous products are very frequently formed, which are either inodorous, or possess a very offensive smell.
Page 473 - There is not one circumstance known at the present day which justifies the assertion that microscopic organisms come into the world without germs, or without parents, like themselves. Those who maintain the contrary have been the dupes of illusions and of ill-conducted experiments, tainted with errors which they know not how either to perceive or avoid. Spontaneous generation is a chimera.
Page 469 - Allow me to take this opportunity to tender you my most cordial thanks for having, by your brilliant researches, demonstrated to me the truth of the germ theory of putrefaction, and thus furnished me with the principle upon which alone the antiseptic system can be carried out.
Page 465 - to the expression vaccination an extension that I hope science will consecrate, as a homage to the merit and immense services rendered to humanity by one of the greatest men of England — Jenner.
Page 468 - An extraordinary movement was everywhere produced in favor of vaccination. A great number of agricultural societies wished to repeat the celebrated experiment of Pouilly-le-Fort. The breeders of cattle overwhelmed Pasteur with applications for vaccine. Pasteur was obliged to start a small manufactory for the preparation of these vaccines, in the Rue Vauquelin, a few paces from his laboratory. At the end of the year 1881 he had already vaccinated 33,946 animals. This number was composed of 33,550...
Page 457 - ... an inch. Under the highest powers of the microscope at present applicable such specks are hardly discernible. Nevertheless, particles of this size are massive when compared to physical molecules; whence there is no reason to doubt that each, small as it is, may have a molecular structure sufficiently complex to give rise to the phenomena of life.
Page 471 - To exhaust a soil, however, a parasite less vigorous and destructive than the really virulent one may suffice ; and if, after having by means of a feebler organism exhausted the soil without fatal result, the most highly virulent parasite be introduced into the system, it will prove powerless.
Page 471 - ... small in comparison with the bulk of the tree or of the straw, but absolutely essential to its growth. In a soil lacking, or exhausted of, the necessary mineral constituents, the tree cannot live, the crop cannot grow. Now contagia are living things, which demand certain elements...