276 ENTOZOA. 



heart, 10 ; orbit, 9 ? ; breast, 7 ? ; soft parts of the thigh, 6 ; neck, 

 5 ? ; ovary, 4 ? ; spinal cord, 3 ? ; globe of the eye, 3 ?; pulmonary 

 vessels, 2 ; pituitary body, 2 ; face, 2 ; mouth, 2 ; soft parts of 

 the shoulder, 2 ; scrotum and testis, 2 ? ; supra-renal capsule, 1 ; 

 vesicula seminales, 1 ; parietes of the uterus, 1 ; placenta, 1 ? 

 Such is M. Davaine's analysis, which, notwithstanding aU his care, 

 must necessarily be imperfect, partly from the difficulty which 

 many have experienced in ascertaining with precision the original 

 seat of the hydatid growth, and partly from the probable inaccu- 

 racies of many of the records from other causes. He has also 

 attempted an analysis of the 165 liver cysts ; 4 of these projected 

 into the thoracic cavity ; 9 opened into the pleiu-a ; 21 communicated 

 with the base of the lung, or with the bronchi ; 8 (apparently) 

 opened into the bihary passage ; 8 others into the cavity of the 

 peritoneum ; 22 into the alimentary canal ; whilst the remaining 

 94 exhibited the more ordinary conditions. Imperfect as Davaine 

 admits these records to be, they are nevertheless highly instructive, 

 and cannot fail to convey a generally correct notion of the relative 

 frequency of hydatids in the various parts of the body. 



I have purposely arranged Davaine's cases in a somewhat 

 different manner to the one he has adopted, in order that they 

 may be the more readily compared with the table of Rokitansky, 

 and also with the analysis I have myself made from cases re- 

 corded in our English periodicals. Altogether, at the present 

 time, I have examined the records of 136 cases of hydatid 

 disease pubhshed in the pages of the " Lancet," the " Medical 

 Times and Gazette," the " British Medical Association Journal," 

 and other well known professional serials — amongst the most 

 valuable of which (ui this relation) I take leave to particularize the 

 Transactions of the Medico-Chirurgical and Pathological Societies.* 



* During the passage of this work through the press I have continued my labours 

 in tliis direction, and have fallen upon several more cases, which cannot now be specially 

 treated of. References to all of them, however, will be found in the Bibliography. 

 — T. S. C. 



