INDEX 



Absence of dominance, 58-69 

 Ahlefeldt, Count, experiments in 

 crossing Red Danish and 

 Jersey cattle, 140-141 

 Albinism, 52-53 

 Albino rabbits, 42-51 

 Andalusian fowl, 59-62 

 Ayrshire cows, the quality of their 



milk, 129-131 

 Barrington, Miss, and Professor 

 Karl Pearson on the colours 

 of Shorthorn cattle, 65-67 

 data concerning Shorthorn 

 cattle, 67 

 Bateson's and Punnett's experi- 

 ments on fowls' combs, 

 30-32, 54--57 

 on Blue Andalusian fowl, 59-62 

 on sweet peas, 52, 107-110 

 Bruce, Robert, data concerning 



Shorthorn colours, 67 

 Bunsow, Robert, discovery of a 



pure-breeding grey Arab, 82 

 Butter fat in milk, 128-140 

 " Butter " bulls, 135 

 Castle, Professor W. E., experi- 

 ments on rabbit colours, 

 38-41 

 colours of Barred Rock fowl, 

 94 

 Cattle colours, 53, 58-69, 70-75 

 Christensen, A. M., data concerning 

 the inheritance of quaUty in 

 Red Danish cows' milk, 

 132-135 

 Colours of cattle, 53, 58-69, 70-75 

 Equidse, 89 

 fowl, 53, 59-62, 91-97 

 horses, 58, 74-89 

 mice, 33-37 

 mules, 89 



oat grains, 111-114 

 rabbits, 37-^1, 42-51 

 wheat grains, 115-118 

 zebra hybrids, 89 

 Combs of fowl, 30-32, 54^-57 

 Coupling, 90-110 

 Crampe, Dr., on horse colours, 75, 77 



Criteria for estimating annual egg 

 yields, 99-100 

 milk yields, 142-143 

 Danish (Red) cows, the quality of 

 their milk, 129-131, 140 

 farmers' efforts to improve 



their cattle, 128 

 (Red) and Jersey cattle crosses, 

 140-141 

 Darwinism and its influence on 



improvement of grain, 120 

 Donkey coloius, 89 

 Dutch cows, the quality of their 



milk, 129-131 

 Economic considerations, 145-150 

 Egg laying. Dr. Pearl's experi- 

 ments, 97-106 

 criteria for determining annual 



yields, 99 

 experience at the Maine Agri- 

 cultural Experiment Station, 

 97 

 Errors in herd and stud book 



records, 64 

 Ewart, Professor Cossar, zebra 



hybrids, 89 

 Fowls' combs, 30-32, 54-57 

 colours, 53, 59-62, 91-97 

 egg yields, 97-106 

 Gavin, W., criteria for milk yields, 



142, 143 

 Hansen, Grut, experience in im- 

 proving the quality of Red 

 Danish cows' milk, 135-139, 

 149 

 Highland cattle colours, 73-74 

 Horse colours, 58, 74-89 

 Hurst, C. C, experiments on rabbit 

 colours, 37-38, 42-51 

 inheritance of colours in 

 Thoroughbred horses, 76 

 Increasing production in plants and 



animals, 146 

 Inseparable effects, 30-41 

 Jersey cows, the quality of their 



milk, 140 

 Jersey and Red Danish crosses, 

 140-141 



151 



