jo 6 Dr . Aikin on prefervlng Health 
where there is a necefTity of living upon corrupted 
putrefcent fieth; but they cannot a£t in this way 
without, at the fame time, rendering the food 
harder and more indigeftible, and, confequently, 
leflening the quantity of nutriment to be derived 
from it. The temporary glow and elevation 
caufed by fpirituous liquors are, I imagine, very 
fallacious tokens of their good effefts ; as they 
are always fucceeded by a greater reverfe, and 
tend rather to confume and exhauft, than to 
feed and invigorate, the genuine principle of 
vital energy. Another extremely pernicious 
effe< 5 l of thefe liquors, is, the indolence and 
ftupidity they occafion, rendering men inattentive 
to their own prefervation, and unwilling to ufe 
thofe exertions, which are fo peculiarly necefiary 
in fituations like thofe defcribed in the foregoing 
narratives. And this leads me to the confideration 
of a third important head, that of exercife. 
The utility of regular and vigorous exercife to 
men expofed to the caufes inducing fcurvy, is 
abundantly confirmed by experience. Captain 
Cook feems to attribute his remarkable fuccefs in 
preferving the health of his crew, more to great 
attention to this point than to any other circum- 
flance. This opinion is greatly corroborated by 
the relations before us. Captain Monck’s crew, 
wintering with their (hips in fafety before them, 
and well fu nifhed with all kinds of fea (lores, 
could have little occafion for labour. The two 
companies 
