[ +86 ] 
Experiment II. 
With the acid of limes. 
The lime is a fruit of the fame genus as the le- 
mon ; its acid is (harper, and has a more agreeable 
flavour. From the near refemblance of thefe two 
fruits, one fhould have fufpe&ed that the neutral fait 
of both would have been almoft the fame ; but their 
appearance is fomewhat different, though perhaps 
upon more accurate trials they may be found to have 
nearly the fame virtues, and chemical properties. 
The firft experiment I made was with thejuice of 
a dozen and a half ol (mail limes; and the neutral 
fait, produced from thence, was of the fame (hape, 
figure, and appearance, as the larger cryftals ob- 
tained in the firft experiment with the lemons; 
only the cryftals were much fmaller, and fuch as 
reprefented by a. a. &c. fig. 2. But having afterwards 
procured three dozen of larger and finer limes, I got 
from them near three times the quantity of juice I had 
in the former procefs ; t and having fatu rated this 
with the alkali, evaporated and cryftallifed it, I 
obtained a fait very different in its appearance from 
the former; though, in other refpe&s, it feemed to 
be intirely of the fame nature. Its cryftals were 
of the fize, and fomewhat of the appearance, of 
barley corns, or grains of wheat, as at c. c. c . ; fome 
larger, fome fmaller ; and laid in an irregular man- 
ner, but fo as to form a beautiful cryftallifation, 
which is reprefented by b t b. b. fig. 2. 
