NOTES OF A BOTANIST ON THE AMAZON AND ANDES 149 
remain to be dealt with in the fourth volume. When complete, 
this exhaustive accoun t of British Cosmaria, accompanied as it is 
h n—so often inadequately—deseribed. The figures show 
the same high standard of excellence as in the two previous 
volumes, while the plates exhibit non - the overcrowding 
ee yraapane | noticeable in the be two par The pene 
is the dominating fa po in "ihe determination of the species- 
groups in Desmids”’; and that ‘this being the verge much of ale 
sucees: LSE ae of the present arrangement Cosma 
disappear: It is possible, however, that the 4 joe be of the 
mid-material we must always depend largely on external 
characters. 
Notes Ce a Botanist on the Amazon and Andes, being enn of 
vel on the Amazon and tts Tributaries, the Trombet 
Bie Negr ig Uaupés, Casiquart, a wigeit Bybttage, ail 
Pastasa; as also the Cataracts of the Orinoco; along the 
Raierk ‘Side of the Andes of Peru and Ecuador, and the 
Shores of the Pacific, 1849-1864. By Ricuarp Mite 
Ph.D., edited and condensed by ALFRED RussEL 
O.M., F.R.S., with a Bingthahical aan aS _ porta 
71 illustrations and 7 maps. Two vols., Sgr oO, pp. lii. 
518, xii. 542. Macmillan & Co. Price 21s. 
. AuFrEeD Waxuace has performed a ee of love by 
bringing together and carefully editing the notes of the travels er 
one of the most distinguished of plant- eflleckors in regions, up to 
his time botanically unknown, which he was the first to explore. 
A student of botany—and notably of the hepatics and mosses, 
with which his name will always be especially associated—from 
e arrived in 1849 at Para, he was already fully qualified to extend 
his knowledge and continue his botanical work. How thoroughly 
he availed himself of his opportunities, his collections, phanero- 
gamic and cryptogamic, and his numerous and important publi- 
cations sufficiently testi 
Shortly after his arrival at Santarem, Spruce acquired the 
friendship of Mr. A, R. Wallace, w ounger brother had been 
his fellow-traveller—a friendship continued till his death, and 
JournaL or Borany.—Vou. 47. [Aprit, 1909.j N 
