NOTICES OF BOOKS. 63 
namely, the great Salt Lake region lying at the back of California, 
where he will botanize in the adjacent mountains. His residence will 
be at the Mormon city, and he will proceed thither by the route of 
Santa Fé in North Mexico. 
The late Dr. TAyLoR's HERBARIUM. 
It may be interesting to many of our readers to know that the rich 
Cryptogamic Herbarium of the late Dr. Taylor, with all his drawings 
and MSS., were purchased by a distinguished and patriotic individual 
of Boston, U.S.A., Mr. Lowell. Happily there are many rising Cryp- 
togamic botanists in the United States who will avail themselves of 
the treasures existing in this collection, while describing the plants of 
their own country. 
NOTICES OF BOOKS. 
Revisio critica generis POTENTILLARUM, et Flora AFRICÆ AUSTRALIS. 
Dr. and Prof. Lehmann of Hamburgh, having brought to a conclu- 
sion the Plante Preissiane, is, we are happy to say, engaged in a work 
on the now very extensive and beautiful genus of Potentilla, to which 
there have been such great additions since the result of his labours, a 
Monograph of the same genus, appeared in 1820. We are sure that 
botanists throughout Europe will aid by communicating new or rare 
species, or by the loan of such to the able author. 
The same indefatigable botanist is also collecting materials for a 
Flora Africze Australis, towards the construction of which he is already 
in possession of the very rich stores of Ecklon and Zeyher, Droge, 
r. Pappe, Baron Ludwig, &c., &e.; and he is continually receiving 
new acquisitions from the Cape. 
Botanical Appendix to Capt. SrURT's Expedition into CENTRAL AUS- 
TRALIA ; dy Rost. Brown, Esq., &c., &c. 1848. 
It is enough that we say this is from the pen of Mr. Brown, 
to stamp it as a work of high merit. The catalogue of species is not 
