0(% Galvanic SocietTf, Paris. 



inixcd with the gas; and the eifect b in some measufd pT'o- 

 portional to the quantity of the residriC, the absorption 

 \ycms. ahvavs greatest v.hen a large quantity of gas was agi- 

 tatcttwith a comparatively small quantity of water. 



From various trials made with great care, Mr. Henry 

 concludes, that, in judging of the influence of temperature, 

 the experiments should be made on equal proportion? of gas, 

 and of water,, and that in this case, with regard to carbonic 

 ?cid gas, 1 -fourteenth of the whole bulk, absorbiible at 53", 

 is the diminwtion of the quantity of absorption produced by 

 each elevation of 10^ of Fahrenheit. 



Of sulphuretted hydrogen gas, 100 parts of water, at 53'^, 

 absorb b6 parts, and at 85° 78 parts. 



Of nitrous oxide gas, 100 cubic inches of water, at 55^^ 

 take up 50, and at 70^ only 44. 



The exneviraents on those gases which are absorbed only 

 in small proportions by water the autlior could nut coiri'e- 

 niently make at more than one temperature. 



He found that at CO^, 100 cubic inches of water absorb, 

 of nitrous gas, 5 cubic inches ; of oxygen, 2*63 ; of phos- 

 phurcttedhvdrogen, 2*14; of gaseous oxide of carbon, 2-01; 

 of carburet'ted hydrogen gas, 1-40; of nitrogen gas, 1-20; 

 of hydrogen gas, 1*08. 



Mr. Henrv mentions that during the al>3orption of large 

 quantities of carbonic acid, sulphuretted hydmgen and ni* 

 trous oxide bv water, an increase of tenipeyatuTe of about 

 3 -fourths of a degree is perceived. 



From the rcguUs of a great variety of experiments made 

 in the more absorbable gases, and on oxygen and nitrogen 

 gases, the author draws the followii'^ general conclusion 

 with regard to pressure : 



That^imder the sanae circiuostancc of temperature, water 

 takes up the sanie volume of gas, whether it be condensed. 

 Or under ordinary' pressure ; but, as the spaces occupied by 

 ftases are invcrselv' as the weights conipressing them, it 

 follows, that water takes up of gas condensed, by one, two, 

 or three additioaal atmospheres, a quantity which is equal 

 to twice, thrice, or four times the (Quantity taken up under 

 tlie ordinary pvetisure. ' ■ D, 



GALVAMC SOCIETY, PARIS. 



On the 28ih of May the Galvanic Society made, for the 

 second time, scMiie experiments on a large scale at the vete- 

 rinary school of Alfort. 



Animals of all sizes, from the insect to the horse, were 

 Eubjected to an apparatus composed of more than 900Q 



disksj 



