206 TREATMENT OF 



He advises a scruple of the former with half a scru- 

 ple of either of the roots every half hour. A like 



"M. Vauqiielin, who has already made this analysis, has found, 

 between the concrete juice and certain animal substances, some 

 very curious analogies. He has not only observed a pretty 

 large quantity of phosphate of lime, but he has separated 

 from it a white substance, quite similar to animal oil, or fat. 

 Mr. Rot'h, a surgeon in the isle of France, has sent me several 

 samples of the evaporated juice, and a bottle of liquid papaya. 



<' As M. Vauquelin has operated only on the concrite juice, 

 T thought it would be interesting to examine this material in its 

 liquid state. 



" The bottle containing it was well closed and sealed, but on 

 opening it, it was not full ; the stopple was forcibly withdrawn, 

 I examined the gas, wbicli was disengaged from it, which was 

 carbonic acid. The liquid, white and opaque like milk, exhaled 

 an insupportable odour, resembling assafoetida, but more active 

 and nauseous. This smell became gradually weaker. This milk 

 strongly reddened the tincture of turnsole, which the aqueous 

 solution of the concrete juice did not. Its flavour was sickish 

 and acrid, leaving in the mouth a taste of sugar. The concrete 

 juice had not the same sharpness, or acrimony." 



"The milk of the papaya filtrated, passes transparent and 

 o-reenish like clarified whey ; it leaves on the filtre a white mat- 

 ter, curdled, of a siiety insipidness, insoluble in cold or hot wa« 

 ter, swelling in the air, and puffing up on the coals like case- 

 ous matter." 



" The concrete juice, distilled over an open fn-e in a glassves- 

 sel, has given a great quantity of carbonate of crystalized am- 

 monia, a fetid oil, and disengaged much carbonic acid gas and 

 carboneted hydrogen. There remained in the vessel a volu- 

 minous mass of coal, shining like that of some animal substance." 



" This coal, reduced to ashes, gave a quantity of lime and 

 phosphate of lime." 



" I have distilled in a sand bath, and over a gentle fire some 

 liquid juice of the papaya; the liquoy coagulated ; it passed in- 



