SS* Rev. J. B. Emmett on Capillary Attraction. 



annexed calculations: I take the altitude of water as the 

 standard : 



Name of the Liquid. Altitude. 



1. Water 100 



2. Sat. sol. muriate of ammonia 102*7 



3. sulphate of potash 95'7 



4. sulphuret of potash 95*2 



6. muriate of soda 88'2 



7. ' sulphate of copper 84*0 



8. Nitric acid 75*0 



9. Muriatic acid 70-1 



5. Oil of tartar per dehq 88 '^ 



10. Essential oil of lemon 4'2*8 



11. Alcohol 4-0-8 



12. Refined whale oil 37'5 



13. Oil of lavender 37'5 



Oil of turpentine, Oil of olives, and Sulphuric aether, nearly 

 the same with 11, 12, 13. 



This table exhibits the relative altitudes to which the liquids 

 are elevated ; and since it was shown in the former paper, that 

 a change in the density produced by variation of temperature, 

 does not affect the height of the column, these numbers re- 

 present the ratios of the forces of attraction between the glass 

 and one particle of the liquid, at the distance to which they 

 are kept asunder by the repulsive force of caloric : and if the 

 force of attraction of the liquid to the solid be required at any 

 temperature, multiply the altitude by the density of the liquid 

 at that temperature. 



The following are some effects of combination : 

 Exp. 1. Saturated solution of subcarbonate of pot- 

 ash, was elevated 23 tenths of an inch .... = h 



Water in the same tube 26*25 tenths = H 



Mixture of one volume water, and one volume so- 

 lution 24.*25 or 24*5 tenths = h' 



d = I; e =z 1*5. 

 By formula (a), h' = 24*3 ; which is between the two values 

 of h\ found by experiment. 



Exp. 2. Solution of sulphate of potash (sp. gr. 1*0328) was 

 elevated 89 divisions of the scale. 



Altitude of water = H = 93 rf = 54*8 

 h =89 e = 56*6 

 By formula [a) h' = 90*9. 



Exp. 3. Solution of muriate of soda . . . . h — 22*5 



Water H = 25*5 



Mixture of equal volumes h! ■= 23*5. 



The fornuila accords closely with the experiment. 



Exp. 



