REVIEWS. 
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book extends over more than 150 pages, and it contains tlie fall reports of 
no less than eighty- one cases which have come under the author’s care, 
most of which he has discharged cured, and all of which he has very fully 
reported. The book is divided into twenty chapters, which correspond to 
so many lectures delivered before the students of Middlesex Hospital ; and 
it deals with all forms of Entozoa, and with a curious case of Bots which 
came under the author’s notice. The most remarkable and interesting 
chapter in the book is the last, which describes minutely a case of Bilharzia 
which was under Dr. Cobbold’s immediate care for several weeks. Al- 
together the work is most interesting and instructive, and is a very useful 
addition to our medical literature. 
A NEW STAR- ATLAS A 
A NOTHER of Mr. Proctor’s books ! Really we wonder how it is that Mr. 
Proctor finds time for all his work. He is Secretary to the Astrono- 
mical Society, which of itself alone should take up much of his time. In 
addition he is a contributor nearly every month to some one or other of our 
scientific magazines ; and further, we find him bringing out some new book or 
other within almost every quarter. It is certainly astonishing labour, and 
all the more that the work is unquestionably well done. Before us is his latest 
effort in a literary and scientific direction. It is an excellent Star- Atlas 
which is small enough to fit easily in anyone’s coat pocket, and which is 
smaller than the atlas of the Society for Diffusing Useful Knowledge, and 
yet has larger maps. This seeming anomaly is explained by the fact that 
the maximum expansion of the S. D. U. K. maps, owing to their distortion, 
is no less than fifty-eight times greater than in Mr. Proctor’s atlas. Besides, 
each of the present twelve maps includes a tenth part of the heavens. Of 
the general plan of the maps the author’s prefatory remarks give a clear 
account : — u The meridians and parallels are drawn in to every fifteenth, 
instead of every fifth degree [as usual] ; but since all the intersections of 
these lines to every fifth degree are marked in the maps, the places of stars 
can be determined, from catalogues or the like, as readily as though the 
lines themselves were marked in. In like manner all the latitude and 
longitude lines, except the ecliptic and the solstitial colures, are omitted : 
but then intersections to every fifteenth degree are marked, and any student 
who is sufficiently advanced to require these lines will be able to recognise 
very readily where they lie, or as to pencil them in if need be. .... The 
method of indicating the effect of precession is also novel. Instead of a 
precession-triangle in the corner of each map, with instructions for obtaining 
compass measurements, I have placed precession arrows over the maps 
[always on latitude parallels 15°, 30°, etc.] ; and these show at once by what 
amount stars in the neighbourhood are precessionally displaced in one 
hundred years.” Further Mr. Proctor points out the advisability of the 
* “A New Star- Atlas for the Library, the School, and the Observatory, 
in Twelve Circular Maps ; intended as a companion to Webb’s Celestial 
Objects for Common Telescopes, &c.” By R. A. Proctor, B.A., F.R.A.S. 
London: Longmans, 1872. 
