BOOKS OP THE QUARTER. 
89 
doctrines of the distinguished ophthalmologists Cramer, Helmholtz, Grille, 
Pilz, and Mannhardt ; and it is not without a feeling of pleasure that we 
find the author opposing the opinions of the two first regarding the supposed 
change of form in the lens. In speaking of the power of adjustment Mr. 
Hogg goes on to say, — “ For my own part, I believe*that in the accommo- 
dation of the eye, the curvature of the crystalline body is unchanged.” 
We cannot however agree with the concluding portion of the sentence, — 
“ that its movements depend upon the special organisms provided for 
this important purpose.” The experiments of Budge and Waller are 
detailed, and a resume of the curious speculation of Professor Draper is 
also given. The purely surgical matter must recommend itself to the 
practitioner, containing as it does the results of Mr. Hogg’s vast experience, 
and including the reports of several of the author’s own cases. The 
arrangement of the classes of disease may be objected to by pathologists, 
but will undoubtedly be approved of by the practical surgeon. Four 
beautifully coloured plates, representing the appearance of the eye in 
the healthy and morbid conditions, accompany the volume, to which is 
appended a useful series of J ager’s “ test types,” so often alluded to by 
ophthalmic surgeons. Mr. Hogg was, we believe, the first in these countries 
who gave a detailed account of the new instrument, and we trust his 
work may meet with all the success it merits. 
THE ANGLER - NATURALIST. " 
I T is indeed desirable that fishermen should become better acquainted 
with the scientific bearings of their finny capture than they seem 
to be at present, and therefore from this point of view the author’s under- 
taking is commendable. But before commencing the arduous task of 
writing for the instruction of the public, it would be as well that compilers 
put to themselves these two questions : first, Is there any work in print 
which is likely to fulfil the desired end ? and second, From what sources 
may the information be obtained which it is necessary to convey ? If 
these queries were seriously considered and conscientiously answered ere 
an author Avields his pen, we conceive that publishers would be saved from 
much unprofitable outlajq and readers spared a considerable amount of 
trouble. The “ Angler-Naturalist ” has been written to supply a supposed 
want — the scientific instruction of anglers,— and, as it were, that it should 
be the constant companion of the fisherman, it is provided with a very 
pretty folding cover, to prevent any injury it might be likely to sustain 
while lying within the pocket of its proprietor. Even here we must enter 
our protest against the habit of making pocket volumes of such an enormous 
size. Why, even in a fishing-basket Mr. Pennel’s work would occupy a 
“ The Angler-Naturalist.” A popular History of British Fresh-water 
Fish, with a plain Explanation of the Rudiments of Ichthyology. By II. 
Cholmondeley Pennel. London: Van Voorst. 1863/ 
