156 Progress of Foreign Science. 



to it a quantity equal to what it had lost, it began to respire 

 freely, to move with ease, to take nourishment, and to be 

 restored to perfect health, when the operation was properly 

 conducted. 



If we take the blood to be injected from an animal of a dif- 

 ferent species, but whose globules have the same form, although 

 of different dimensions, the animal is but imperfectly relieved, 

 and can rarely be kept alive for more than six days. The 

 pulse becomes quicker, the breathing preserves its regular 

 state, but the animal heat falls with a remarkable rapidity 

 when it is not artificially kept up. From the instant of the 

 operation the stools become mucous and bloody, and preserve 

 this character till death. If we inject blood with circular 

 globules into a bird, the animal usually dies in the midst of 

 very violent nervous affections, which may be compared in 

 rapidity, to those caused by the most intense poisons. They 

 are manifested even when the subject on which we operate, 

 has not been enfeebled by any notable loss of blood. 



The blood of the cow and the sheep was transfused into 

 cats and rabbits. Whether the operation was practised im- 

 mediately after the extraction of the blood, or whether this 

 was left at rest in a cool place for 12 or even 24 hours, the 

 animal has been restored for some days, in a great number 

 of cases. The blood was kept in a fluid state, either by 

 eliminating a certain quantity of fibrine, or by adding 0.001 of 

 caustic soda. The blood of the sheep excites in ducks rapid 

 and powerful convulsions, followed by death. They have 

 frequently seen a bird die before they had completely emptied 

 the first syringe, although it had experienced but a slight 

 bloodletting before, and although it was in vigorous health. 

 They consider transfusion in man to be absurd and dangerous, till 

 we be further advanced in the intimate knowledge of the active 

 principle of the blood. 



VI. Analysis and Chemical Apparatus. — M. Berzelius, 

 in his elaborate memoir on the manner of analyzing the ores of 

 nickel, inserted in the Annales de Chiniie et de Physique for last 

 June, after applying to a new native combination of that metal 

 with arsenic, sulphur, and iron, the method by nitric acid ; by 

 nitro-muriatic acid; by nitro-muriatic acid and acetate of lead; 

 finally, hits on a more satisfactory mode of analysis by the 

 agency of chlorine, which merits to be generally known. We 

 have alluded to it in our last Number, p. 330, where something 

 similar is described from Gilbert's Annalen, as the contrivance 

 of M. Dobereiner, 



On a barometer tube, at the distance of three inches from 

 one of its ends, blow a ball of such size as that it will be filled 

 only one-third, by the powder of the substance which we wish 



