1399-1900.] Dr J. S. M‘Kendrick on Enzymes in Tissues. 89 
It was distinctly present in the extract of tubercular 
sputum. 
(9) That a milk ferment, apart from those tissues in which it is 
known to exist, was rarely present. 
(10) That the cancerous and sarcomatous tissues which w r ere 
examined had proteolytic and distinctly diastatic pro- 
perties. 
(11) That rabbit’s blood contained no diastatic enzyme, whereas 
eclamptic blood did. 
(12) That all the tissues from the case of eclampsia yielded 
extracts which had marked diastatic properties, although 
these themselves did not reduce Fehling. 
In conclusion, I may add that only a limited number of tissues 
have been examined, and that, before any final conclusions can be 
made as to the wide distribution of pepsin and ptyalin or amylopsin 
in physiological and pathological tissues, it would be necessary to 
examine similar tissues of many animals of the same and different 
species to see if all behave alike. 
I cannot but entertain the hope that the examination of the 
blood in obscure diseases, and of carcinomatous and sarcomatous 
growths (with a view of ascertaining the presence or absence of 
enzymes), may throw light on the pathology and aetiology of 
certain diseases and morbid growths. 
