KEW PUBLICATIONS. 195 
place for slares. Thousands of slaves are annually exported from there to 
St. Thomas and Prince's Island. Our commanders on the coast hare heen 
told this often enough, stiU the people of Cape Lopez never see the smoke of 
an English steamer. I am, etc., 
Gaboon^ March 22, 1865. 
GrBAIfT MlLITE, 
NEW PUBLICATIONS. 
More de la Cftaine Juramgne, Par M. Ch. Greuier, Professeur a la 
Faculte des Sciences, lere partle, pp. 346. Paris : F. Tary. 1865. 
The Jurassic mountains, though belonging politically to three na- 
tions, form a tract of country of which the natural features are so 
thoroughly homogeneous that more than once before this their botany 
has been separately treated upon. The chain measures one hundred 
and eighty miles from north to south, and from thirty to fifty miles in 
breadth at different points. The highest peaks attain nearly six 
thousand feet in altitude, and occupy very much the same position 
with regard to the perpetual snow-liue as our own higher Highland 
mountains. The geology is very different to that of our own highest 
hills J and much more uniform, but as there are zones of climate as we 
descend coiTesponding to the lower parts of Britain, and at the base 
of the mountains a region where Indian-corn and the vine luxuriate, 
the general range of station is very much greater, and although the 
area of the chain is not very much larger than that of Yorkshire, the 
number of species in the flora exceeds that of the whole of Britain in 
the proportion of about four to three. 
Professor Grenier's merits and qualifications as a plant-describer are 
too well known for him to need any introduction to our readers. Next 
to the works of Koch and Fries, the * Flore de France,' of which he is 
joint author, is no doubt the Continental handbook which is most used 
by British botanists, and there are not many who will demur to the 
high appreciation of its value which, in the preface to the last edition 
of his Manual, Professor Babington expresses. M. Grenier has the 
credit of grounding his descriptions upon a large measure of personal 
field-observation, of neither innovating rashly nor servilely following in 
the track of his predecessors, and upon the whole, in the acknowledging 
