CESTODA 141 



time, and while thus engaged eight weeks before admission 

 began to lose power in his left arm and leg ; gradually the 

 paralysis increased, and he was taken home, where he remained 

 for six weeks. During this time he had every week an attack 

 of severe headache, and once he lost all sight for over half an 

 hour. Gradually the symptoms increased, and he was taken to 

 the hospital, but even then was able to walk with assistance 

 part of the way. 



" At the autopsy, when the calvarium was removed, a large 

 cyst about four inches in diameter was found on the mid- 

 convexity of the right hemisphere of the cerebrum, slightly 

 towards its anterior part. It formed a marked prominence on 

 the anterior surface of the brain, and was bounded superficially 

 by the pia mater and arachnoid, which were neither noticeably 

 thickened nor adherent to the dura mater. On opening the 

 cyst it was seen to extend inwards and abut on the wall of the 

 lateral ventricle, and consisted of the ordinary gelatinous 

 membrane, studded internally with little granular eminences, 

 some pellucid, some opaque white. The contents were thin 

 limpid fluid. The brain tissues around presented scarcely any 

 induration. All other organs structurally healthy, congestion 

 being the only morbid condition present. 



" The specimen is preserved in the hospital museum, which 

 contains two other preparations of hydatids in the brain, and 

 also an hydatid cyst of large size growing from the interior of 

 the frontal bone." 



In concluding this account of hydatids I may remark that, 

 by the employment of sanitary measures, the disorder might, 

 in course of time, be thoroughly stamped out. What these 

 measures are I have already stated. 



I need hardly say that the following bibliography by no 

 means exhausts the records of echinococcus disease. In Dr 

 Albert Neisser's recent monograph nearly a thousand separate 

 cases are quoted and classified. The monograph of Dr Hearn, 

 which is not mentioned in Neisser's work, also contains a 

 valuable bibliography. 



English literature. Hydatids in general (BIBLIOGRAPHY No. 

 20 a).Ballard, E. (review of Henoch), 'Med.-Chir. Kev./ 

 1854. Bird, S. D,, ' On Hydatids of the Lung ; their diagnosis, 

 prognosis, and treatment,' 2nd edit., Melbourne, 1877. Busk, 

 " On the Nat. Hist, of the Echinococcus/' ' Micr. Soc. Trans./ 

 orig. series, vol. ii, 1849. Budd, G., 'Diseases of the Liver/ 



