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he had found most successful, and which had been hitherto 

 untried. The results of several experiments performed ac- 

 cording to this plan were then read. In a series of eighteen 

 experiments, the iris was injured in ten ; the crystalline lens 

 escaped in eleven ; union took place between the implanted 

 portion and the adjacent parts in seventeen, in the space of 

 forty-eight hours ; in twelve, adhesion of the iris took place 

 to some part of the cicatrix ; sixteen were restored to imper- 

 fect vision ; and in one, slough of the lambeau, and consequent 

 destruction of the eye, occurred, the portion of cornea to be 

 inserted having been detained half an hour before it was 

 attached, in order to try how long it would retain vitality 

 sufficient to enable it again to take on a vital action. 



The author made several experiments with iodine, nitrate 

 of silver, &c., and found that they were incapable of pro- 

 ducing any effect on the milky state of the cornea, although 

 they appeared to diminish the extent of the cicatrix ; cor- 

 rosive sublimate (in the proportion of from half a grain to 

 three grains to the ounce of water) was the only medicinal 

 substance tried which had the power of restoring absolute 

 clearness to the implanted portion. 



The author then mentioned the various means he had 

 employed to produce absorption of the cicatrix, with their 

 results ; explained his view of the cases in which this opera- 

 tion might be attempted ; and concluded by entreating 

 those surgeons, who possessed hospitals, not to be too hasty 

 in rejecting an operation, which, from the experiments de- 

 tailed, and the living subjects exhibited, was now proved 

 to be at least possible. 



Mr. Bigger then made an oral communication on a series 

 of experiments in which he was at present engaged, con- 

 nected with the operations detailed in his paper. The 

 object of these experiments was the removal of small spots 

 of opaque lymph, where they existed in the centre of the 

 cornea. The method employed consisted in passing a liga- 



