24, A WELCOME GUEST. 
the crew in perfect health, an effect which strict 
cleanliness, order, and wholesome diet, will sel- 
dom fail to produce, even in long voyages. 
At five degrees North latitude, we took ad- 
vantage of a calm to draw up water from a 
depth of five hundred fathoms, by means of a 
machine invented by the celebrated Russian 
academician Parrot. We found the tempera- 
ture five degrees by Reaumur, while that of 
the water on the surface reached twenty-five de- 
grees. To us it appeared ice-cold, and we felt | 
ourselves much refreshed by washing our heads 
and faces with it. The machine weighed forty 
pounds, and might contain about a moderate pail- 
full; but the pressure of the column of water 
over it was such, that six sailors with a wind- 
lass were hardly able to draw it up. We made 
an attempt to sink it to a thousand fathoms’ 
depth, but the line broke, and we lost the ma- 
chine; fortunately, however, we were provided 
with a second. 
While we were still more than a hundred 
miles from land, a swallow alighted on the deck. 
It is wonderful how far these little animals can 
fly without resting. At first, it seemed weary, 
