298 - Evolution in the Netherlands. [ May, 
Species, published in 1859, which first furnished one vast basis 
for the theory of development. That work, translated into 
Dutch by Dr. F. C. Winkler, now conservator of the geological, 
mineralogical, and paleontological collections in ** Teyler’s Foun- 
dation” at Haarlem, excited great and general interest. It is 
true that a theory striking so keenly and so deep at the roots of 
existing opinions and prejudices could not be expected at once to 
meet with general approbation. Many even amongst naturalists 
offered vehement opposition. Prof, J. van der Hoeven, bred up 
as he was in the school of Cuvier, endeavored to administer an 
antidote for what he regarded as a baneful poison by translating 
into our tongue Hopkins’ well-known article in Fraser’s Maga- 
* zine. However, neither this production nor the professor’s influ- 
ence over his students could withstand the current, especially 
when, after his death, the German zodlogist, Prof. Emil Selenka, 
now professor of zodlogy at Erlangen, was appointed at Leyden. 
A decided advocate of your theory, he awakened in the younger 
zodlogists a lively enthusiasm, and founded a school in which the 
conviction survives that the theory of development is the key to 
the explanation of the history of creation. 
In Utrecht, Professor Harting, with convictions more and more 
decided, was busy in the same direction ; and Selenka’s successor 
in Leyden, Prof. C. K. Hoffmann, did not remain in the rear. 
Other names, among which are Groningen and Amsterdam pro- 
fessors, might here be cited. By the translation of your “ Descent 
of Man” and “ The Expressions of the Emotions in Man and Ani- 
mals,” with copious explanatory notes, and by various original pa- 
pers and translations treating on your theory, Dr. Hartogh Heys 
van Zouteveen has also largely contributed to the more general 
spread of your opinions in the Netherlands. 
To testify how generally they are held in esteem among the 
younger zodlogists and botanists, and more and more obtain 
among professors of analogous branches in this country, we might 
refer to a multitude of less important papers and articles in the. 
periodicals. 
This, however, we deem superfluous, since by offering for your 
acceptance an album, containing the portraits of a number of 
professional and amateur naturalists in the Netherlands, we offer 
a convincing proof of our estimation of your indefatigable en- 
deavors in the promotion of science and our admiration of you, 
sir, as the cynosure in this untrodden path. We recognize with 
pleasure Dr. Hartogh Heys van Zouteveen as the primary mover 
