FREE BOOKS

Author's List




PREV.   NEXT  
|<   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66  
67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   >>   >|  
dog and female wolf afforded animals much more dog-like in aspect--slouched ears and even pied in color. If you look at the descriptions and illustrations of these two hybrids, you will perceive at a glance that the doubt arises to the mind in the case of the first, 'what genus of _wolf_ is this?' whereas in the case of the second, 'what a curious _mongrel dog_!' The views of Mr. Walker in his work on Intermarriage, before alluded to, agree substantially with those of Mr. Orton, _so far as regards crossing between different breeds_; but they cover a broader field of observation and in some respects differ. 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 reasoning 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. _The 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, eyebrows, 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 variet
PREV.   NEXT  
|<   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66  
67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   >>   >|  



Top keywords:
parent
 

organs

 

parents

 
external
 

communicates

 
nutritive
 

breeds

 

crossing

 

animals

 

resemblance


muscles

 
female
 

system

 

contents

 

locomotive

 

hybrids

 

Walker

 

descriptions

 

forehead

 
depends

orbits

 

arises

 
perceive
 

modified

 

curious

 

internal

 

abdominal

 
viscera
 

thoracic

 
fingers

depend

 

movable

 

eyebrows

 

observations

 
variet
 

established

 

fleshy

 
situated
 

cerebel

 

posterior


immediately

 
ligaments
 

junction

 

mongrel

 

organization

 

transmit

 

slouched

 

varieties

 

aspect

 

strongly