 | 1913 - 780 pages
...obtained experimentally on the same forms of life. It must be said, however, that the discussion of it 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station, No. 47. with a view to an analysis of the effects of inbreeding, though undertaken at greater or less... | |
 | 1914 - 782 pages
...The occurrence of the same individual animals more than once on the dam's side of the pedigree only. 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station, No. 69. - Pearl, R., "Studies on Inbreeding. I. A Contribution Towards an Analysis of the Problem of... | |
 | 1908 - 852 pages
...characteristic shape and color of the shell. (11) The several processes involved in the extrusion of the 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station, No. 45. • A Biometrical Study of Egg Production In the Domestic Fowl. I. Variation in Annual Egg... | |
 | 1908 - 634 pages
...Rock pullet in the flock of the Maine Experiment Station. The occurrence of triple-yolked eggs has 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station. No. 15. 418 been noted before2. The rarity of such eggs, however, is indicated in the statement of... | |
 | 1909 - 784 pages
...IN BREEDING1 i DR. RAYMOND PEARL AND FRANK M. SURFACE AGRICULTURAL EXPERIMENT STATION, UNIVERSITY OF MAINE I. THE NATURE OF THE SELECTION PROCESS WHATEVER...characteristic of the plant or animal which he is breeding. AVhat is usually desired is to improve several characteristics at the same time. Thus, with dairy cattle,... | |
 | Society for the Promotion of Agricultural Science (U.S.) - 1909 - 852 pages
...initial record is made by the breeder. He is liable to make mistakes, particularly since no standard for 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station, No. 55. 'Here and throughout the paper it will be understood that reference is made to the breed of... | |
 | Raymond Pearl - 1911 - 420 pages
...years it has never produced anything except starchy kernels of a deep orange yellow color when ripe. 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station, No. 29. 3 Pearl. R.. and Surface, FM, "Experiments in Breeding Sweet Corn," Me. Agr. Expt. Stat. Ann.... | |
 | 1913 - 838 pages
...results obtained accord fully with the theory. But leaving this point entirely out of account, the fact 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station. No. 48. » Pearl, R., and Parshley, HM. Data on Sex Determination in Cattle, Biol. Bui., vol. xxiv,... | |
 | 1920 - 430 pages
...than her Jersey parent and 1 . 141 per cent more than her low testing Holstein-Friesian parent. The 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station, No. 136. 2 Gowen, John W., 1920. Inheritance in Crosses of Dairy and Beef Breeds of Cattle. II. On... | |
 | Frank Rattray Lillie, Carl Richard Moore, Alfred Clarence Redfield - 1915 - 512 pages
...the figure. Some of the eggs and some of the empty membranes were free in the body cavity. Some were 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station No. 76. partly or entirely enclosed by peritoneum. In several instances two eggs or an egg and a bunch... | |
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... 1 Papers from the Biological Laboratory of the Maine Agricultural Experiment Station. No. 
