94 Analyses of Mineral Waters. 
be followed, is to study fully the rules of grammar, and to practice 
them unremittingly. It is principally by its capability of serving 
this great purpose, that one language is considered as more impro- 
ved, or more nearly approaching to perfection, than another. 
It is of importance to observe that the art of grammar goes no fur- 
ther than to assist us in avoiding ambiguity. It furnishes no new 
means of conveying our sentiments. These the speaker or the wri- 
ter must derive from that command over language, which his mem- 
ory, his experience, and his associated ideas, give him. In this res- 
pect, the art of grammar is on a par with the art of criticism. The 
latter can only teach the poet or the orator to avoid errors. It cre- - 
ates no new faculties ; it imparts no new powers. It simply directs, 
and guards from more glaring errors, those powers which nature has 
bestowed. Every practitioner in these elevated arts, and the con- 
nected ones, must seek for the means of great performances, in the 
resources of his own mind, in the vividness of his conceptions, and 
the boundless extent of his associations. 
To conclude, all the physical sciences may in time, and after 
great improvements, be reduced to the form of exact sciences. 
Morals and literature, from the nature of the subjects of which they 
treat, must, however improved, be for ever excluded from that class. 
Art. IV.—Chemical Analyses of Mineral Waters from the Azores ; 
y Cuarues T. Jackson, M. 
No.1. Four bottles of water, carefully sealed at the boiling tem- 
perature. Mark, “ No strings on necks of bottles.” 
This water was taken from the centre of the Great Geyser, by 
Dr. Webster. 
On examination, there appears to be a siartink vacuum over the 
water, so that it has evidently been well secured, and the water does 
not contain any gas in solution. When uncorked, no odor is per- 
ceptible. ‘The water is transparent. A few flocculi of siliceous mat- 
ter separate on standing. Tested for free acid, by blue litmus pa- 
per; none discovered. Reddened litmus paper is turned blue, and 
turmeric paper brown by the water. Hence it contains a free al- 
kali. ~ A portion of the water, neutralized by hydrochloric acid, was 
tested for metallic salts, precipitable by liquid sulphuretted hydro- 
gen, and by hydro-sulphate of ammonia,—none discovered. A por- 
