116 LECTURES. 



he knew, he had never been attacked by any other 

 species of helminth. Without really sharing his 

 suspicions as to the presence of more ascaridcs, I 

 prescribed three successive four-grain doses of san- 

 tonin, each dissolved in half an ounce of castor oil. 

 In this way I hoped, of course, not only to test for 

 lumbricus, but also in the event of a negative result 

 to satisfy the patient's mind. In this latter respect 

 I believe my anticipations were fully realized. 



CASE LXVII. B. A., a gentleman residing in 

 London, requested my opinion on the 23rd March, 

 1873. He had nothing particular to complain of 

 beyond slight indigestion ; and he had hitherto 

 never entertained any suspicion respecting the pre- 

 sence of lumbrici. However, on the previous day 

 he had passed an Ascaris lumbricoides about ten 

 inches in length. Having explained to him the 

 unlikelihood of there being any more entozoa to 

 come away, I ordered a few compound scammony 

 powders combined with santonin, their action 

 being increased by a saline aperient. The result 

 was not communicated. 



CASE LXVIII. C. B., an infant only seven 

 months old, was brought to me by its parents, who 

 could only attribute the child's refusal of food and 

 sickliness to the presence of parasites ; of the ex- 

 istence of which, however, they admitted they had 

 never had ocular evidence. The father, a medical 

 man, practising in the suburbs of the metropolis, 



