EE VIEWS. 
351 
(Soho), and whose radius would be of the length of 210 yards. From tho 
last of these dates the disease rapidly diminished to a comparatively insigni- 
ficant level, and may be said to have ceased by the end of October. Such a 
phenomenon as this was unnsual in our English experience of cholera, and 
the very singularity of the outbreak inspired Dr. Snow with the hope that 
fresh light would be thrown by it on the whole question of cholera propaga- 
tion. Fixing his attention steadily on the local pecnliarities of the district, 
Dr. Snow quickly perceived that one remarkable circumstance was common 
to the history of the large majority of attacks of the disease — viz., that the 
sufferers had been in the habit of drinking the water of a well in Broad 
Street, which had a great reputation for sweetness and freshness. Analysis 
of this water soon showed that it was highly charged with organic impurities ; 
and on the 8th of September the vestry, on the urgent persuasion of Dr. 
Snow, removed the handle of the pump, and so prevented the further use of 
the well. On subsequent examination, it was discovered that the sewage 
from a neighbouring house-drain had leaked into the wed ; and it was more- 
over shown that the discharges of a patient residing in the house in question, 
and suffering from severe diarrhoea, if not from actual cholera, must have 
mingled with the sewage immediately.” 
Among the novelties in Dr. Anstie’s book we may mention the account of 
the thermometer in the diagnosis of febrile diseases. The thermometer may 
be easily (following Dr. Anstie’s directions) employed by the mother or the 
nurse in the detection of fever, and since it gives results of the most valuable 
kind, the author’s chapter on the subject should be attentively read. Alto- 
gether, “ Notes on Epidemics ” is an important work, useful alike to the 
public and the practitioner, accurate in its facts, clear in its descriptions, and 
logical in its inferences, up to the most recent advance of medical science, 
and highly creditable to the esteemed physician who has taken so much 
trouble to instruct the people. 
issuing excellent books at about half the cost at which they could be pro- 
duced in London. Labour or all kinds is so much cheaper on the Continent 
than here, that (we believe we are correct in stating) it would cost less to have 
a manuscript printed in English in Leipsic than in London. This explains 
why so admirably printed, well illustrated, and accurate a treatise as that we 
are about to notice can be issued in Paris at the low cost of three francs. 
The little volume before us contains over 350 pages of well-printed letter- 
press, and a hundred capital woodcuts, and costs only two and sixpence. To 
those who can read French as easily as English, we recommend M. Boillot’s 
Astronomy. Its style is clear and its descriptions accurate ; and though in 
some parts of the Introduction there is a little to much of the florid stamp of 
writing, the greater portion of the text is free from defects of diction. It is 
* “ Traite Elementaire d’Astronomie.” Par A. Boillot. Paris: Furne. 
Jouvet, & Cie. 1866. 
ELEMENTARY ASTRONOMY* 
ERS on the other side of the English Channel have so many 
tges over those at home, that we are not surprised to find them 
