94 PARASITES OF MAN 



nails or in our clothing, may subsequently be swallowed, and 

 develop within us accordingly. Even a thorough washing of 

 the hands will not ensure absolute security. In like manner, 

 those who partake of choice salads, prepared from the stores of 

 the market-gardener, run a certain amount of risk. The 

 vegetables may have been manured with night-soil containing 

 myriads of tapeworm eggs, or they may have been watered 

 with fluid filth into which the eggs were accidentally cast. In 

 such cases, one or more tapeworm ova will be transferred to the 

 digestive organs, unless the vegetables have been very carefully 

 cleansed. In the same way, one perceives how fallen fruits 

 all sorts of edible plants, as well as pond, canal, and even 

 river water procured from the neighbourhood of human habita- 

 tions, are liable to harbour embryos capable of gaining entrance 

 to the human body. One individual suffering from tapeworm 

 may infect a whole neighbourhood by rendering the swine 

 measly, these animals, in their turn, spreading the disease far 

 and wide. As already remarked, measles sometimes occur 

 in great numbers in different parts of the body. Among the 

 more remarkable cases of the multiple Cysticerci are those 

 recorded by Delore (1864) and Giacomini (1874). In M. 

 Delore's case, about 2000 were obtained post mortem. Of 

 these, 111 occurred in connection with the nervous centres, 

 eighty-four being in the cerebrum, twenty-two in the membranes 

 of the brain, four in the cerebellum, and one within the substance 

 of the medulla oblongata. Dr Knox published a less notable 

 instance in the ' Lancet' (1838); and in the year 1857, Dr 

 Hodges, of Boston, U.S., published a case where the cysts, 

 which in size he compared to rice grains and coffee beans, were 

 felt subcutaneously. The coexistence of Taenia and Cysticerci in 

 the same individual has also recently been observed in France 

 (' Lond. Med. Rec./ 1875). Besides these, several remarkable 

 instances have lately been reported by Davy, Tartivel, and 

 others. 



To the literature already quoted in connection with the beef 

 tapeworm the following may be added : 



BIBLIOGRAPHY (No. 14). Aran, in ' Archives Gen. de Mede- 

 cine/ 1841. Baillet, " Helminthes," art. in ' Bouley and 

 Reynal's Diet. Veterin./ torn, viii, J869. Becoulet and Griraud, 

 " On Cysticercus in the Brain," ' Bullet, de la Soc. Med. de 

 Gand/ 1872 ; and in ' Lond. Med. Rec./ Feb., 1873. #iVM, /., 

 Cases, ' Guy's Hosp. Rep./ 1860. Bouchut, "Cyst, in the Brain," 



