INDEX. 163 



the ferro-prussiate of, 209 ; and of the sub-sulphate of, 

 389 

 Potash, constitution of the ferro-prussiate of, xiii. 147 

 bin-arseniate and bi-phosphate of, on the relation be- 

 tween the cr}'stalline form and chemical proportions of, xiv. 

 201 ; and on the phosphate and arseniate of potash and soda, 

 415. 

 observations on the crystalline forms of the salts of, xv. 



282. Effects of the boracic acid upon the acid fluate of, 303. 

 Experiments on the hydroxanthate of, 305. Combination of 

 the chromic acid with, 310 

 preparation of the saturated hydro-sulphuret of, xvii. 165. 



Crystallization of the sub-carbonate of, 167. Acid tartaro- 

 sulphate of, 171. Cyanate of, how prepared, xviii. 394 

 solvent property of the acid tartrate of, iii. 212 



Potassium and sodium, analysis of mixtures of the chlorides of, 



viii. 367 



iodo cyanuret of, and mercury, xiii. 429 



■ different proportions with which it can combine with 



sulphur and sulphuretted hydrogen, xiv. 213 

 sulphuret of, experiments on, xv. 149. On the pre- 



paration of, 380 



Potatoe, spirit obtained from, iii. 187 



stalks, alkali obtained from, v. 122. Yellow dye ob- 

 tained from their tops, 125. Native country of, 138 



• apples, alcohol obtained from, vi. 157 



— -^ sugar discovered in, vi. 354 



apples contain tartaric acid, vii. 179 



observations on the native country of the, x. 25, 470. 



xiv. 454 



the growth of, promoted by using salt as a manure, x. 57. 



On the employment of, in steam-enginss and other boilers, 

 to prevent the calcareous incrustations on their bottoms and 

 sides, 444 



(wild), on the native country, and cultivation of, xv. 259 



— a substitute for soap, xviii. 165. 



M 2 



