274* METHOD OF INCREASING THE LIGHT OF CANDLES'. 



no fnuffing ; they give lights which are nearly equal, and com- 



buftion proceeds fo regularly, that no part of the melted tallow 



efcapes unconfumed, except from accidental caufes. 



Remarks on the No. 4, placed at the angle mentioned above, and lighted, 

 phenomena. . r „ . ... ,. , „ . 



f requires no inufnng: it gives a light very little itronger than 



No. I, but its colour is not quite fo white, nor its flame fo 



Heady, 



No. 5. This candle, placed at an angle of 30°, and lighted, 

 requires no fnuffing ; its flame is rather fluctuating, and not fo 

 white as No. 4, nor is its flrength of light much greater than 

 No. 1. The melted tallow fometimes overflows when the air 

 in the room is put in motion ; yet the light of this candle is 

 much improved by the candle's being placed in an inclined 

 pofition. 



The mould candle, treated in the fame manner as thofe 

 above, affords a very pure fteady flame, without fmoke and 

 without fnufling, and its flrength of light is about equal to that 

 of No. 1. 



ON ECONOMY. 



The economy of My experiments have not been fufficiently numerous to de- 

 candles as to termine with precifion which of thefe candles affords the moll 

 fumption of the ^g nt - at a given expence, but the few experiments which I 

 f«l« have made feem to indicate, that the quantity of light is di- 



rectly as the quantity of combuflible matter expended. 



EZ. WALKER. 



Lynn, Nov. 19, 1802. 



REMARKS.— W. N. 



On oandles in On candles in general fee an effay by W. N. in the Philof. 



general. Journal, quarto, I. 67 ; alfo my Firft Principles of Chemiftry, 



Art. Wax : Hermfladt on the different materials, wax, tallow, 

 fpermaceti ; Philof. Journ. quarto, V. 187. — I have always 

 fufpe&ed from the general facls, that the light of fmall candles 

 is cheaper than that of larger, and have little doubt of the truth 

 with regard to fuch as exceed the diameter of three quarters of 



Outline of very an inch in tallow. We are much in want of a feries of ex- 



iefirabie experi- periments on the different defcriptions of candles, under the 

 aaents concern- ■ * , 



inj them. general 



