(JO The Philippine Journal of Science wis 



two other instances in this series. Eleven specimens were 

 shown illustrating bacillary colitis, one case among these with 

 superimposed cholera, a second with amoebic colitis, and a third 

 with typhoid lesions. 



INFECTIONS WITH COCCIDIUM AND ISOSPORA IN ANIMALS IN 



THE PHILIPPINE ISLANDS AND THEIR POSSIBLE 



CLINICAL SIGNIFICANCE 



By Prof. Frank G. Haughwout 



In the light of the recent discovery in Manila of several species 

 of coccidia, the attention of the society was directed to the 

 possibility of the infection of. human beings by these parasites 

 of the lower animals. Several instances were cited where pro- 

 tozoan parasites of lower animals had been found infesting man. 

 and attention was called to recent human infections with Cocci- 

 dium and Isospora in the war zone. The paper was illustrated 

 by microscopical demonstrations showing stages in the life cycle 

 of both Coccidium and Isospora, the pathological changes pro- 

 duced by them, and comparative material illustrating the ease 

 with which eggs of helminths may be mistaken for the cysts 

 of coccidia and vice versa. 



PHILIPPINE CONTACT POISONS 

 By Prof. E. D. Merrill 



There was a general discussion of contact poisons, not only 

 those found in the Philippines, but those occurring in other 

 countries. The talk was illustrated • by the exhibition of her- 

 barium specimens. The matter of those plants causing injuries 

 by purely mechanical means was briefly mentioned, spines, 

 bristles, etc. ; the general characters of the nettle type of sting- 

 ing hairs was discussed, with the structure of the hairs and 

 their irritating contents. The fact was emphasized that all 

 poisons of the contact type that cause violent skin eruptions, 

 comparable to the Rhus or poison oak poisoning, were all from 

 representatives of a single natural family, Anacardiaceae, or 

 mango family; including Rhus, Semecarpus (lacquer poisoning), 

 Mangifera (mango), and Gluta (rengas). The poisonous prin- 

 ciple in these plants is a nonvolatile, very permanent oil, highly 

 irritating in character. Treatment indicated is washing the 

 infected parts with alcohol or by treatment with lead acetate, 

 the former acting as a solvent, the latter forming an insoluble 

 compound with the toxicodendrol ; vaseline and salves should 

 never be used, as they merely spread the irritating oil. In 

 conclusion, the stinging crystals or rhaphides of oxalate of lime, 



