The great Arthropod class, the Crustacea, presents to the zoologist at the present day an immense range of forms,.
The most famous zoologist contemporary with these men was Salomon Dreier (1813-1842).
The freshness, the air of leisure, the enthusiasm of discovery that mark the work of these old writers have lessons for the modern professional zoologist, who at times feels burdened with the accumulated knowledge of a century and a half.
The views of Bonaparte were, it appears, also shared by an ornithological amateur of some distinction, John Hogg, who propounded a scheme which, as he subsequently stated (Zoologist, 1850, p. 2797), was founded strictly in accordance with them; but it would seem that, allowing his convictions to be warped by other considerations, he abandoned the original " physiological " basis of his system, so that this, when published in 1846 (Edinb.
But in the higher regions it presents many features of special interest alike to the zoologist and the traveller.