158 Scientific Intelligence. 
standpoint. In this volume he has brought tegether, a very large 
mount of useful matter. The introduction contains a very com- 
plete list of memoirs previously published. The salneok| is divided 
peog APL IneNy, the tin-mining districts of Bohemia and Saxony 
oming first, then those of Cornwall, Burma, Siam, Australia and 
; Tasus ania. The geology is treated briefly and concisely, in part 
in connection with each locality, and more fully in a résumé at 
the close. re larger part of the volume, however, is devoted to 
a Pactual ac the SoTenee, and here much valuable information 
s been brought together 
Ill. Borany AND ZOoLoey. 
de ncaa Alge of New England and adjacent apne by W. 
‘G. Fartow, M.D, (Reprinted from Report of U. . Fish Com- 
mission ee 1879.) Washington, 1881. 8vo, pp. — tab. xv.— 
Hitherto the only good work attempting to "describe all the sea- 
weeds of our coast has been the Nereis Boreali- Americana of Dr. 
Harvey, published by the Smithsonian Institution in three quarto 
volumes from 1852 to 1858, This work took in the seaweeds of 
the entire ns of the United States, Pacific as well as Atlantic. 
Since it appeared the industry of collectors has detected many 
ditional ea along the several portions of our coasts, and the 
ecologists at home and abroad has given us much 
omomsaniap oy pe or Floridew abd ae 
hin t j it 
8 
reprealietion of the Pucacee is now catia understood as that of 
« cew, and is clear] of an oosporic character ; that is, the 
n 
grass-green Algee, in the order Zoospore 
The obscure Chroococeacew and Nostoclinew form also a sepa 
rate order, the Cryptophycee. Thus Professor Farlow recog- 
nizes four or ders, Cryptophycew, Zoosporee, canoes and Flort- 
