396 Scientific Intelligence. 
The first, entitled “ an Analysis of the Natural Classification 
of the Mammalia,” contains a translation of the generic charac- 
ters of the Mammalia of Cuvier, with additions regarding the 
comparative anatomy of these animals. The second part con- 
tains n general outline of the zoological system^ of the celebrated 
Illiger, with nunierous observations by Kuhl, the naturalist at 
present employed in investigating the ornithology of the In- 
^an Idands. It is accompanied with fifteen lithographic draw- 
ings, illustrative of the mammalia, the greater number of which 
are original. The second work, entitled, An Introduction to 
the Ornithology of Cuvier, for the use of students and travel- 
lers,” is executed in the same manner, and is illustrated with an 
interesting series of lithographic drawings, explanatory of the 
internal structure of birds, and of the various parts used, 
as characters in their discrimination and arrangement. The 
third work, entitled, Elements of Conchology, including the 
fossil genera and the animals, Part 1. Univalve, with up- 
wards of 500 figures,” is also deserving of commendation, and 
will be found useful not only to the zoologist, but a;lso to the 
geologist. The figures in this part are superior in beauty to 
those of the two first parts, and reflect much honour on the 
skill and taste of Mrs Bowdich, whose name, we observe, is at- 
tached to them. We have no hesitation in recommending these 
three small works to the notice of the young geologist, and to 
the attention of travellers. The geologist, too, will find the 
third part useful in his investigation of the testaceous remains 
in the mineral kingdom. We trust Mr Bowdich will continue 
his labours, and execute the other branches in the same style 
with those already before the public. 
48, Ornithorhyiricus . — | had an opportunity of proving two 
curious, and, I believe, disputed facts in the history of that 
curious animal, the Ornithorhyncus Paradoxus, namely, a tube 
in the spur, connected with ^ cyst, through which a poison is 
ejected into the wound the animal inflicts, and which causes 
violent inflammation and swelling, but the consequences are 
not fatal ; 2. That the animal is oviparous. I was fortunate 
in getting an impregnated female, in which, on dissection, I 
found an ovum in the ovary about the size of a pea. The 
natives are well aware of the circumstance that the animal lays 
