gf^S" T'Hfi PHILOSOPHY 



German fwallow a hollow filver fphere, divided into two 

 cavities by a partition, and perforated with a great number of 

 holes, capable of admitting an ordinary needle. Into one of 

 thefe cavities he put four fcruples and a half of raw beef, 

 and into the other five fcruples of raw bleak. In twenty-one 

 hours the fphere was voided, when the beef had loft a fcru- 

 ple and a half, and the fifli two fcruples. A few days after- 

 wards, the German fwallowed the fame fphere, which con- 

 tained, in one cavity, four fcruples and four grains of raw, 

 and, in the other, four fcruples and eight grains of boiled 

 beef. The fphere was returned in forty-three hours : The 

 raw fleih had loft one fcruple and two grains, and the boiled 

 one fcruple and fixteen grains. Sufr^sedring that, if thefe 

 fabftances were divided, the folvent would have a freer accefs 

 to them, and more of them would be diftblved. Dr. Stevens 

 procured another fphere, with holes large enough to receive 

 a crow's quill. He inclofed fome beef in it a little mafticat- 

 ed. In thirty-eight hours after it was fwallowed, it was 

 voided quite empty. Perceiving how readily the chewed 

 meat was diftblved, he tried whether it would diflblve equal- 

 ly foon without being chewed. With this view, he put a 

 fcruple and eight grains of pork into one cavity, and the 

 fame quantity of cheefe into the other. The fphere was re- 

 tained in the German's ftomach and intcftines forty-three 

 hours ; at the end of which tim.e, not the fmalleft quantity 

 of either pork or cheefe was to be found in the fphere. He' 

 next fwallowed the fame fphere, which contained, in one 

 partition, fome roafted turkey, and fome boiled fait herring 

 in the other. The fphere was voided in forty-fix hours ; 

 but no part of the turkey or herring appeared ; for both had 

 been completely dilTolved. Having difcovered that animal 

 fubftances, though inclofed in tubes, v/ere eafily diftblved by 

 the gaftric juice, the Do61or tried whether it would produce 

 the fame effe6l upon vegetables. He, therefore, inclofed ait 



