314 
LEROY F. THOMPSON. 
With the knowledge of laboratory science and methods, an 
experienced laboratorian is capable of detecting any adulteration, 
the quality of the product, amount of the various ingredients 
and the number of bacteria to the cubic centimeter. 
The microscope is also invaluable to the breeder of fine ani¬ 
mals, as it gives him the means whereby he can detect sterility 
very readily where otherwise it would be impossible for him to 
ascertain the cause; as there is quite frequently met with males 
that ejaculate properly, but on microscopic examination the sper¬ 
matozoa is found to be dead. 
Urine analysis is another great aid to the practitioner and 
can be carried on only through having an intimate knowledge 
of laboratory work. 
Last but not least is the great amount of knowledge that has 
been given the practitioner through the discovery by the labora¬ 
torian of that important branch of medicine, namely, hematology. 
Through this discovery there has been many conditions and 
diseases, with their cause, brought to light, so they can be met 
with, combated and treated with some degree of intelligence. 
The various tests for hemoglobin, and the knowledge of blood 
corpuscles and the number of their variety, has rent the veil of 
mystery that has inshrouded blood diseases for so many cen¬ 
turies. 
The knowledge of the blood count with the variety of the 
leucocytes in certain specific conditions has rendered diagnosis 
more positive by the aid of the new laboratory equipment. The 
same may be said of the rapid advance in bacteriology since the 
discovery of a method for isolating, cultivating and counting of 
bacteria. 
It is with pleasure that I note the addition of the laboratories 
in our educational institutions, and hope that they will continue 
to improve along that line, as men with such advantages will 
readily see the importance of the laboratorian to the practitioner. 
* 
* * 
Following the discussion of this paper, and as a result of 
questions put to the author, he stated that he was of the opinion 
