SECRETARY'S REPORT. 95 



glance that the doubt arises to the mind in the case of the first, 

 ' what genus of wolf is this V whereas in the case of the second, 

 ' what a curious mongrel dog !' 



The views of the late Mr. Walker in his work on Intermarriage, 

 before alluded to, agree substantially with those of Mr. Orton, so 

 far as regards crossing behceen different breeds; but they cover 

 a broader field of observation and in some respects difier. Mr, 

 Walker maintains that when both parents are of the same breed 

 that either parent may transmit either half of the organization. That 

 when they are of different varieties or breeds (and by parity of rea- 

 soning the same should hold, strongly, when hybrids are produced 

 by crossing different species) and supposing also that both parents 

 are of equal age and vigor, that the male gives the back head and 

 locomotive organs and the female the face and nutritive organs — I 

 quote his language : 'when both parents are of the same variety, 

 one parent communicates the anterior part of the head, the bony part ' 

 of the face, the forms of the organs of sense (the external ear, under 

 lip, lower part of the nose and eye brows being often modified) and 

 the whole of the internal nutritive system, (the contents of the trunk 

 or the thoracic and abdominal viscera, and consequently the form 

 of the trunk itself in so far as that depends on its contents.) 



The resemblance to that parent is consequently found in the 

 forehead and bony parts of the face, as the orbits, cheek bones, 

 jaws, chin and teeth, as well as the shape of the organs of sense 

 and the tone of the voice. 



Tiie other parent communicates the posterior part of the head, the 

 cerebel situated within the skull immediately above its junction with the 

 back of the neck, and the whole of the locomotive system; (the bones, 

 ligaments and muscles or fleshy parts.) 



The resemblance to that parent is consequently found in the back 

 head, the few more movable parts of the face, as the external ear, 

 under lip, lower part of the nose, eyebrpws, and the external forms 

 of the body, in so far as they depend on the muscles as well as the 

 form of the limbs, even to the fingers, toes and nails. * * 



It is a fact established by my observations that in animals of the 

 same variety, either the male or the female parent may give either 

 series of organs as above arranged — that is either forehead and or- 

 gans of sense, together with the vital and nutritive organs, or back 

 head, together with the locomotive organs." 



To show that among domesticated animals organization is trans- 

 mitted by halves in the way indicated, and that either parent may 



