A 



JOURNAL 



OP 



NATURAL PHILOSOPHY, CHEMISTRY, 



AND 



I ^.t : THE ARTS. 



FEBRUARY, 1804. 



ARTICLE L 



Defcription of an Apparatus, hy which the EfeSi of Atmofpheric 

 Prejjure infupplyivg Wortri'Tubs and other Vejfels zvith Water 

 on ike Syphon Principle, may he fecured againji any Interrup- 

 tion to be caiifcd by the extricated Air. In a Letter from 

 Sir A. N. Edelcrantz, Counfellor of the Chancery, and 

 Private Secretary to the King of Svoeden, Member 9f the 

 Sivedijh Academy, Sfc. fyc. 



To Mr. NICHOLSON, 



MY DEAR. SIR, 



vJ'N my late relurn from an agricultural tour in Scotland, t Introduaion 5 

 find you have in your excellent Journal, honoured me with J^^P^^^'"g 

 the mention of fome ideas of mine, refpeding the applica- vours to fupply 

 tion of fyphons to raife water, with lefs expence than ufual, wprm.tubs, &c. 

 for coolers in diftilleries, condenfers of fteam-engines, &c. the aaion of th« 

 The ufe of fyphons is fo well and To generally underftood, fyphon. 

 that though the mofl obvious things do not always prefent 

 themfelves firfl to the mind, it would have been furprizing if 

 the fame notion had not likewife occured to others. In fadl, 

 I have lince learned, that a perfon in America, more than 

 twenty years ago, obtained a patent for ufing the fyphon to cool 

 the worm-pipes in diftilleries, and though I neither know his 

 name, nor the fpecification of his invention, I prefume it to 

 Vol. VIL— February, 1804. G be 



