40£ Vaccine Inoculation, 



the gas employed, or converted into vapour in it, in different 

 proportions at different temperatures, caul'es it to undergo 

 irregular expansions. By the methods that he employed, 

 the veilc-ls and inuruments made life of were rendered com- 

 pletely dry ; and under thefe circumftances he found that the 

 volumes of all the permanent elaftie fluids, whether folublc 

 or infoluble in water, underwent an uniform and equal 

 change of volume with every change of their temperature ; 

 and that they fufiered an expanfion of * x \ of their bulk in 

 pading from the temperature of 32° Fahrenheit to aia°. 

 The vapour of ether obtained by heat followed the fame law 

 of equable dilatation ; and calculating upon it, it appears, 

 that with every increment of a degree of Fahrenheit there is 

 an increment of volume of nearly ^ T , probably, for all 

 aeriform fluids. This is not very different from the eftima- 

 tion given in his Traitc ILlcmentoire de Chtmie, by Mr. La- 

 voifier, who, from the experiments of Mr. de Luc, confider* 

 the expanfion of atmofpherical air as ^yi^T ^ or eacu degree 

 of Fahrenheit *. 



— _ ,, __ ,_ . | , i , . | , , ,^ 



LXIXr Intelligence and Mifcellarieous Articles, 



VACCINE INOCULATION. 



HE printed report of the houfe of commons profefllng 

 merely to have publifhed extracts from the minutes of the 

 evidences, but a partial account only having been given to 

 the public of Dr. Pearfon's evidence from thoie minutes, we 

 propofe to give it wholly. It is not our intention to make 

 any remarks ; the faired way for the parties interefted, and 

 molt proper conduct for us, being confidered to be the giving 

 the account from the minutes, efpecially as Dr. Pearfon's 

 " Examination of the Claimst," &c. juft publiflied, is moft 

 likely to afford the requilite explanations. 



In our next Number we fhall give the fecond and only 

 ether evidence of Dr. Pearfon on the 15th of ApriL 

 Dr. Pearfon's firft Examination (the honourable admiral 

 Berkeley in the chair), agreeably to the Summons dated 

 Lunae, jjto Die. Aprilis 1802. [From a Tranfcript by the 

 ^Committee Clerk, taken from the Minutes of the Houfe of 

 Commons.] ® 

 Are you converfant with the vaccine inoculation ? 



• On this article the editors of the Journal (its Mines remark that, 



according to the experiments of Mr. Sauffure, air, in all its different dates 



of l2turation with moifturc, experiences uniform increments of tempe- 



,c; and that oi : fome experiments from Am on tons it is prove-d that 



the princij.k ... with u-gard ro prtulure. — Kmtor. 



\ Sre our laft number, page 2. >3, for the accpuct of this publication. 



8 A, Yes : 



