sra UF HYDATIDS. 



'^ Prudence bovvever suggests the propriety of 

 endeavouring to ascertain, by experinicnts on ani- 

 mals, the eifects of those liquors which are to be 

 used as injections. The effect of the smoke of to- 

 bacco in case eighth, in which hydatids were lodg- 

 ed in the lungs, is an inducement to the prosecu- 

 tion of such experiments ; and tliere is even rea- 

 son to suppose, that camphor, turpentine, and some 

 other su!)stances, which are very destructive to 

 worms and insects, and which are readily and safe- 

 ly absorbed in such quantity, as to communicate 

 their taste and smell to the blood in the human 

 body, might in cases of hydatids be of use, when 

 taken into the stomach, or even when applied to 

 the skin of the patient." 



^^ OJ the concomitant symptoms. 



*^ As the history of the symptoms, occasioned by 

 hydatids, can be collected only from a variety of 

 cases, I have subjoined several of those which have 

 fallen under the observation of my father, and of 

 myself. 



^^ Case 1. A stout man, twenty years of 

 age, complained of constant headach, chiefly on 

 the right side, followed by a dilatation of the pu- 

 pil, and epileptic fits, which proved fatal to him. 

 On dissection, the cranium was found to be much 

 thinner on the right than on the left side, particu- 

 larly the right parietal bone, which in many places 

 was not thicker than a wafer. On opening the 

 right ventricle of the brain, a cyst about the size of 



