782 



A MANUAL OF VETERINARY PHYSIOLOGY 



Heat, hibernating animals, 373, 384 



hibernation, in, 384 



homoiothermal animals, 373 



increase in working horses, 375 



influence of coat colour on, 379 

 of high temperatures on, 



380 

 of low temperatures on, 

 381, 382, 383 



in large and small animals, 378 



loss, 377, 378, 379, 380 



due to varnishing, 380 



nerves, 376 



normal temperature, 374 



oxidations, 372, 377, 764 



poikilothermal animals, 373 



produced during feeding, 375 



production, 375 



and nervous system, 376 



puncture, 376 



radiation of, 377 



regulation, 377 



rigor, 397, 418 



spots and cold spots, 570 



surface and deep, 373 



thermotaxis, 377 



units produced, 385 



variations in body tempera- 

 ture, 374 

 Helicotrema, 579 

 Henle, loop of, 317 

 Hensen's cells, 579 



line, 388 

 Heredity, 731 



atavism, 737 



chromosomes, 733 



determinant, 733 



dominant characters, 733, 734, 



735 

 examples of, 735 



irregular domin- 

 ance in sheep, 



735 

 evolution, 736 

 factors, 733 



coupling of, 735 



interaction of, 735 



repulsion of, 735 

 gamete, 733, 735 

 germ cells, 733 

 in disease, 737 



Mendelian inheritance in sweet- 

 pea, 734 

 recessive characters, 733, 734 

 reversion, 737 

 segregation, 734 

 somatic cells, 733 



fluctuations, 736 

 ' sports,' 736 

 staying power, 733 

 telegony, 737 



Heredity, theories, Darwinian, 731 

 de Vries, 731 

 Galtonian, 731 

 germ-plasm, 732 

 Mendelian, 732, 734 

 law of ancestral in- 

 heritance, 731 

 mutation, 732, 736 

 Weismannian, 732 



throwing back, 737 



unit characters, 733, 735, 736 



zygote, 733, 735 

 Hexone bases, 211, 753 

 Hexoses, 762 

 Hibernal gland, 508 



sleep, 508 

 Hibernating animals, 119, m, 384 

 Hibernation, 119, 373, 384, 508 



respiratory quotient, 119 

 Hiccough, 151 

 Hip-joint, 596, 609 

 Hippomanes, 711 

 Hippuric acid, 314, 321, 327, 331, 



338, 339 

 Hirudin, 22 

 Histidin, 255, 323, 753 

 Histon, 21 

 Histones, 754 



Hock-joint, 597, 599, 601, 611, 617 

 Homoiothermal animals, ^y^ 

 Hoof, 661. See also Foot 



growth of, 673 



wall, 662 

 Hordein, 755 



Hormones, 192, 230, 261, 292, 725 

 Horn, chemistry of, 672 



laminae, 659, 665 

 origin of, 659 



moisture in, 672 



structure of, 668 



See also Foot 

 Horse, act of rising, 602 



affection in, 510 



age when mature, 694 



albino, 304 



arterial degeneration, 97, 742 



astigmatism of, 533, 540 



azoturia, 8, 12 



bile, 240 



blood, 2, 12, 17, 24 



boiled food for, 193 



bolting, 511 



broken wind, 152, 371 



' brushing,' 585, 605 



buck-jumping, 640 



caecum, of, 214 



capacity for work, 746 



cataract in, 652 



' cat ' hairs, 97, 300 



centre of gravity, 602 



colic, 235 



