BOOKS OP THE QUARTER. 
85 
Bates asserts that although the two “ come in contact in several places 
where these intermediate examples are unknown , I never observed them to 
pair with each other. Besides which, many of them occur on the coasts 
of Guiana, where H. thelxiope has never been found.” The only deduc- 
tion, which the author himself draws from these facts is, that II. thelxiope 
is a good and true species, which has been deduced by natural selection 
from H. melpomene. We hail with pleasure both facts and conclusions, 
and make no doubt that our readers will find in the pages of this work, 
ample evidence in support of the Darwinian theory. 
The second volume is devoted to the narration of adventures in the 
Upper Amazons, Santarem, and Ega. Leprosy appears to be very preva- 
lent in the former, but from the symptoms as described by Mr. Bates, we 
are led to suppose it is of a nature different from the usual varieties of this 
disease. The conventional supposition that every human race, no matter 
how aboriginal, exhibits some conception of a Supreme Being, is not 
borne out by the author’s experience. “ None of the Indian tribes on the 
Upper Amazons have an idea of a supreme being, and consequently have 
no word to express it in their own languages.” The chapter on the forms 
and distribution of monkeys is pregnant with interest, and contains what 
may be considered the grandest speculations of this zoologist. 
While passing over the pages of Mr. Bates’s book, we became almost 
insensible to surrounding objects, and well-nigh fancied we were wander- 
ing through the mighty forests of Brazil, surrounded by the humming 
insects and gaudy-plumaged birds, whose natural history the author has 
so vividly portrayed. It has never been our lot to divide the pages of 
a more interesting or instructive work, and we heartily recommend it to 
all our readers. 
FISII HATCHING."* 
T HE production of fish by the artificial incubation of the ova which 
have been collected on the spawning beds or extracted from the 
female, has engaged much attention of late years. It is, too, a subject 
worthy of all the consideration it is likely to receive, and which may, we 
trust, be taken up by all classes of the community. Very large sums of 
money are, from year to year, expended on the cultivation of domestic 
animals, which, when reared, still demand a considerable outlay, in the 
shape of food, care, &c. ; whilst little or no trouble has been taken to rear 
animals which, in a pecuniary point of view, are just as valuable, and 
which possess the additional recommendation, that they do not require 
to be fed. It is quite true that, once we have hatched our fish-eggs, and 
sent their produce into our rivers, they are no longer our own property ; 
but then, as Mr. Buckland very correctly observes, the country is benefited, 
and materially benefited, whilst our philanthropy has not cost us a penny. 
Who would not be a philanthropist under such conditions, especially when 
* (i Fish Hatching.” By Frank T. Buckland, M.A., F.Z.S. London ; 
Tinsley, Brothers. 1863. 
