62 PARASITES OF MAN 



a measle which, when unrolled, measured nearly an inch and 

 a half in length. Although thousands of these bladder 

 worms must exist in the cattle of England, up to the pre- 

 sent time not a single instance has been recorded of the 

 occurrence of these cystic parasites in the United Kingdom, 

 except in our experimental animals. Notwithstanding my 

 inquiries, I have not yet found a butcher, flesher, meat- 

 inspector, or veterinarian, who has encountered this parasite in 

 any animal slaughtered for the market. Several butchers have 

 denied their occurrence in meat sold by themselves. Even so late 

 as June, 1874, the presence of measles in the flesh of cattle was 

 denied before an assembly of French savans ; yet for many years 

 past I have constantly exhibited measly beef and veal in the 

 lecture room of the Royal Veterinary College. (See the discussion 

 of the Societe de Therapeutique, recorded in the ' Bulletin Gen. 

 de Ther.' for June 30th, 1874, and also the < Jour, de Ther./ No. 

 14, for July, p. 556, where, however, special remarks on this 

 head have been omitted ; see also the ' Lond. Med. Record ' for 

 July 29th, 1874, p. 472, and the ' Lancet ' for Dec., 1874, p. 794.) 

 Quite in contrast with the statements referred to are those of 

 recent Italian observers. 



Some few years back Professor G. Pellizzari communicated 

 to the Medico- Physical Academy, at Florence, the results of a 

 series of experiments conducted by himself, with the assistance 

 of Dr Tommasi, in regard to the temperature necessary for the 

 destruction of cysticerci in measled meat. An account of these 

 experiments is published in Tommasi's edition of my ' Manual/ 

 The researches were made in relation to certain sanitary 

 measures effected by the Municipal Commission of Florence, 

 the express object of these measures being to prevent the 

 injurious distribution of measly meat, especially that of swine. 

 Signer Bosi, the superintendent of the public slaughter- 

 houses, granted every facility in his power. In a previously 

 published memoir by Professor E. Perroncito it was stati<l 

 that measly meat (panicatura dcgli animali) required a higher 

 temperature than that of boiling-point for the destruction 

 of the bladder worms in question. In this opinion Signor 

 Bosi shared. According to the original memoir of Perroncito 

 we are told that " about twenty specimens of Cysticerci were 

 collected by the author, and placed in boiling water. After 

 twenty minutes' boiling, not one of the parasites appeared to 

 suffer. The head continued to be drawn into the body, and 



