134 Production of Sugar from the Starch of Wheat, 



animal. The one preserved perfect health; the other died 

 in a Few days, in consequence of the amputation of the 

 thigh, and the loss ot blood which was transfused. 



It must not, however, be thought, that in this experi- 

 ment the transfused blood, by some particular cause, had 

 no deltti;rious properties, fcr the following experiment 

 proves the contrarv. 



As in the preceding experiment, I separated the thigh 

 from the body ; three minutes aficr introducing the poison 

 into the foot, I passed iht; blood of the crural vein into the 

 jugular vein of another animal ; the transfusion was pro- 

 longed five minutes without producing any effects. I then 

 stopped it, and disposed things in such a manner that the 

 blood of the crura! vein should return to the animal to 

 which it belonged. Almost instantly this animal exhibited 

 evident signs of the action of strychnos on the spinal 

 marrow. 



From the diflTerent experiments reported in this memoir, 

 we must, I think, conclude, 



1st. That the lymphatic vessels arc not always the route 

 followed by foreign matters, to arrive at the sanguiferous 

 system. 



2d. That the blood of animals, upon which the bitter 

 strychnos has produced its deleterious effect, cannot pro- 

 duce any fatal effects upon other animals. 



As to the explanation of this singular phaenomenon, it 

 would be, I think, premature to give it at present. In 

 physiological science, we ought to be sparing of conjec- 

 tures, and prodigal of facts. 



Magendie, D. M. p.. 



Note.- — ^This Memoir has received the approbation of the 

 Institute. 



XXVI. On the Prodnction of Sugar from the Starch of 

 Wheat, and of Potatoes, hy the Jgency ofSulpkuric Acid. 

 By Mr. WiLLiAivj Moore, London. 



J. HE interesting nature of this curious fact will, I hope, be 

 thought sufficient apology for my venturing to offer a few 

 observations on this subject. I shall first briefly state that 

 it is to M. Kirchhoff of St. Petersburg that the public are 

 indebted for this discovery. He very lately communicated 

 it to Professor Berzelius of Stockholm. This celebrated 

 chemist, immediately on his arrival in this country, men- 

 tioned it to Sir Humphry Davy, at whose desire I repeated 



the 



