SUBJECT INDEX 773 



palate length, 171, 171 



palate length related to skull length, 182, 182 

 related to skull type, 184-186, 185 



palate process related to total palate, 182-184, 183 



palate width, 160, 160 



skull length, 169, 170, 203-204, 204 



related to maxillary premolar tooth size, 203-205 



zygomatic width, 156-157, 157 

 modifications of, underlying factors in, 359360 



and dental defects, 229, 232-235, 233, 262, 265, 278, 370-372, 371 

 nasal bones of, congenital absence of, 321, 322 

 normal type, 152-155 

 occipital crest in, 190 

 premolar carrying interval of, 230 



size variations of, in bassetlKnmd-English bulldog hybrids, 321, 322-325 

 type differentiation of, value of indices and measurements in, 184186, 190, 

 206, 210-211, 220-224, 305-306 



and distortions, analysis of problems concerning, 225-226 

 variety of, among dogs, 9, 151-152, 210-211 



Species, origin of, 24, 35 



Spinal motor neurones, loss of, 25-27 



Stimuli, auditory, nature of, 534 



response to, 549, 558 

 olfactory, nature of, 536 

 tactile, nature of, 534 



response to, 549, 558, 562 

 visual, response to, 549, 563 



Structural changes, in evolution of species, 24-28 



Structural deviations, (see also growth) 

 among different species, 911, 19-26 



Suprarenal, adrenalectomy, effect of, on behavior, 730-735, 735 



and suprarenal cortical extract, effect of, on behavior, 730735, 735 

 adrenalin, effect of, on behavior, 723730 

 deficiency of, and disease, 421 

 histological technique for, 423 



Swine, 21 



T 



Tail, differences in, among dogs, 9-10 



inheritance of screwtail in bassethound-Eiiglish bulldog hybrids, 388-396, 390, 

 393, 395 



Teeth, (see also dental defects, dental occlusion, dentition) 

 differences in, among dogs, 10 



premolar, size of, 176-178, 176, 177, 178, 180-181, 181, 205, 205 

 size of, as related to jaw size, 177-178 



