ORIGINAL ARTICLES. 
ARTIFICIAL INSEMINATION.* 
By Prof. L. L. Lewis, Veterinarian and Bacteriologist to Oklahoma 
Agricultural Experiment Station, Stillwater, Oklahoma. 
The veterinarian should never neglect the scientific and tech¬ 
nical side of his profession. Yet, we wonder if the profession 
does not now rightfully include more than was included in the 
college curriculum of a few years ago. There certainly is no 
one better fitted by training to undertake general studies in 
animal husbandry than the veterinarian, and his field of useful¬ 
ness to the agricultural interests should include every phase of 
animal husbandry, as well as the treatment of animal diseases. 
If the veterinarian will only identify himself with the questions 
relating to animal breeding he will not only increase his useful¬ 
ness to his clients, but will find a field that is entirely worthy of 
his efforts from a scientific standpoint. 
It should not be presumed that our knowledge of the phy¬ 
siology of reproduction is complete, although there is a great 
mass of reliable data available. Logically, a study of animal 
breeding begins with a study of the reproductive organs and 
cells, the conditions influencing the production of these cells, 
and the factors determining their vitality. Many of the prob¬ 
lems of animal breeding have been treated as if there was noth¬ 
ing to be learned, or else nothing to be gained in a practical 
way by scientific investigation and study. Animal breeding in¬ 
volves more than the proper selection of sires and dams. Stock 
breeding should be placed on a scientific basis, and there are 
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