46 THE INTERNAL PARASITES OF 



probably by-and-by occur in the case of measly veal and 

 beef. At present measly beef is entirely unknown to our 

 butchers, although for many years past I have exhibited 

 specimens at public meetings of the British Association 

 and on other occasions. In Calcutta the same obstacles 

 to investigation exist, for Dr. Lewis has told us that 

 " personal applications to the various Chinese pork 

 butchers were found to be quite useless." However, he 

 was enabled to procure abundance of specimens of the 

 pork measles from the slaughterhouses located in the 

 north-western suburbs of Calcutta ; whilst, for the Punjab 

 examples of cyst-affected beef, he was indebted to 

 Assistant- Surgeons W. H. Jameson and Gr. Andrew, who 

 forwarded them from Rawul Pindee and Fort Attock. 



To any unprejudiced person it must now be perfectly 

 evident that our own welfare is intimately bound up 

 with the health of cattle. If they are largely infested 

 with bladder worms, we become the more liable to infect 

 ourselves with tapeworms. The most cogent evidence 

 we possess respecting the value of precautionary mea- 

 sures is to be found in the Indian Sanitary Commis- 

 sioner's seventh annual report. In the Punjab, the 

 cattle which drank water contaminated by faecal matter 

 became largely infested ; whereas those animals which 

 were supplied with clean water, to which ' ' human filth " 

 had not gained access, were entirely free from the 

 bladder-worm disease. To use Dr. Oliver's own words, 

 " the cysticercus entirely disappeared from amongst the 

 cattle a few months after means had been taken to secure 

 them a good supply of well water." At Jullundur, 

 where the cattle had been supplied with dirty tank 

 water, it was clear that the disease originated with the 

 camel drivers, " who are notoriously dirty in their habits, 



