XI, B. 6 



Boynton and Wharton: Parasitic Infestation 



287 



It will be noted from Table I that 11 cattle died during the 

 first storm on October 23 and that 14 died during the second 

 storm on November 3. This indicates that their vitality was 

 so low that the animals could not withstand exposure when 

 infested to such an extent with these intestinal parasites. 



The caretaker was directed to transfer the entire herd to 

 grazing lands on high ground, and this was done. On April 

 15, 1916, the Bureau of Agriculture was notified that only two 

 of the cattle had died after being transferred to the high ground, 

 and that the whole herd was in good condition with the exception 

 of one animal which had not completely recovered. This fact 

 demonstrated that the animals had become infested on the low- 

 lying grazing grounds. 



Table I. — Showing the number of deaths from intestinal parasites in a herd 

 of cattle and goats in Ambos Camarines Province. Total deaths, 69. 



Date. 



1915. 



Mar. 6... 

 Mar. 28... 

 Apr. 17... 



May 9 



June 2 



June 3 



June 9 



Aug. 1-31- 

 Sept. 20-. 

 Sept. 25... 

 Sept. 28... 



Oct. 7 



Oct. 12.... 

 Oct. 13.... 



Died. 



Immun- 

 ized. 



Non- 



immun- 



ized." 



Date. 



1915. 



Oct. 15... 

 Oct. 20... 

 Oct. 22... 

 Oct. 23 b. 

 Nov. 3 c. . 

 Dec. 3 ..- 

 Dec. 4 ... 

 Dec. 7 ... 

 Dec. 8... 

 Dec. 9... 

 Dec. 22 - 

 Dec. 23<J. 



Total. 



Died. 



Immun- 

 ized. 



Non- 

 immun- 

 ized, a 



43 I 



26 



" The nonimmunized animals arrived from Masbate on September 20, 1915. 

 >> First typhoon. 

 <^ Second typhoon. 

 <• Third typhoon. 



The collection of worms made by Boynton was found to con- 

 tain 8 species, 7 from the cow and 2 from the goat. One species. 

 Haemonchus contortus, was found in both individuals. The 

 species, as far as they can be identified with the limited literature 

 at hand, are as follows: 



