ScienceJohn Michels (Journalist) 1938 |
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Стр. 187
... animals developed a lime- or silica - secreting mechanism for the generation of resistant parts relatively late in their evolution and that this had not taken place in most forms by Algonkian time . Even in the early and middle Cambrian ...
... animals developed a lime- or silica - secreting mechanism for the generation of resistant parts relatively late in their evolution and that this had not taken place in most forms by Algonkian time . Even in the early and middle Cambrian ...
Стр. 247
John Michels (Journalist). voices would be raised in approbation of such fruitful animal experimentation . Second : Free and intelligent experiments on animals during the last three hundred years have been the greatest factor in our ...
John Michels (Journalist). voices would be raised in approbation of such fruitful animal experimentation . Second : Free and intelligent experiments on animals during the last three hundred years have been the greatest factor in our ...
Стр. 248
... animals more pain in one hunting , trapping and fishing season than in all the centuries of animal experimentation . The pain inflicted by the hunter , fisherman and trapper is not wanton , to be sure , and yet inevitable . We use animals ...
... animals more pain in one hunting , trapping and fishing season than in all the centuries of animal experimentation . The pain inflicted by the hunter , fisherman and trapper is not wanton , to be sure , and yet inevitable . We use animals ...
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CARR W H Raymond H Torrey 419 | 13 |
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Academy acid activity Advancement of Science Agricultural American Association animals annual appointed asso awarded biological botany Bureau California cancer carcinogenic cells cent chairman Chem chemical chemistry Chicago clinical College Columbia University committee Cornell University culture director discussion disease Division effect electric engineering experimental experiments fessor field forest geology Grand Central Terminal growth Harvard Harvard University Health held Hospital human ical increase industrial injection Institute interest investigation Jour laboratory lecture mathematical mechanics Medical School medicine meeting ment method mice Museum National nature observed organization papers physics physiology plant present president problems production professor protein recent RECENT DEATHS reported SCIENCE FRIDAY scientific scientist secretary Section session Smithsonian Institution Building Society solution species structure substance Survey symposium theory tion tissue tocopherol tumors United University versity virus vitamin vitamin K Washington yellow fever York York City zoology