14 THOMPSON YATES LABORATORIES REPORT 
School of Physiology in the Tliompson Yates Laboratories is therefore in reality a double one, 
including both Histology, the study of the intimate visible structure of the machinery of the 
body, and Physiology, the study of the active working of that machinery in health. Of the two 
studies the latter is of course the more difficult, and requires more previous training, but it forms 
also much the finer intellectual training, as it is actuated by the strict and well-ascertained 'laws' 
which form the basis of the exact sciences of Physics and Chemistry. But it is noteworthy that 
by studies m Histology were each of those twcv great leaders of medicine whom we delight to 
Research Lauorai oitv 
welcome on this occasion of our opening ceremony, led earliest along their courses of beneficent 
discovery ; Lord Lister, by his investigation of the phenomena visible with the microscope in the 
inflamed frog's membrane ; Professor Virchow, by the comparison of the microscopical structure ot 
the body in healtli, and of the changes wrought in the cellulai" elements of organs by interfering 
with the channels bringing them fresh blood for nutriment. 
The Class-room for Histology is made to accommodate eighty students. Each student is 
allotted ample table space, and supplied with water, gas, electric light, and a set of chemical 
reagents, and a drawer and cupboard in which to keep under lock and key his sketch-book, 
specimens, microscope and instruments for fine dissection. A small aquarium for preservation of 
fresh-water plants and beetles, snails, etc., is placed in the west end of the room. A microtome 
