No. 393-] REVIEWS OF RECENT LITERATURE. 755 
New fossil North American mosses are described by Kirchner in 
the eighth volume of the Zransactions of the Academy of Science of 
St. Louis, and Mrs. Britton in the Bulletin of the Torrey Botanical 
Club for February. 
A comparative general study of the seedlings of certain woody 
plants, and of the anatomy of the hypocotyl and epicotyl, is printed 
by Francis Ramaley in a recent number of Minnesota Botanical 
_ Studies. 
Nevada and other Weed Seeds is the title of a bulletin, by F. H. 
Hillman, recently issued from the Nevada Experiment Station. 
PETROGRAPHY. 
Herrmann’s Quarry Industry and Quarry Geology’ is an ele- 
mentary text-book on the composition and character of the rocks 
used for construction and ornamental purposes and on the methods 
employed in exploiting and finishing quarry products. It describes 
briefly the methods used in testing the strength and wearing quali- 
ties of building stones and gives a short account of the present con- 
dition of the quarry business. 
So far as the discussion goes it is simple and straightforward, so 
that it may easily be comprehended by any one who possesses some 
little knowledge of mineralogy and geology 
The most interesting portion of the book is that devoted to the 
rocks quarried in Saxony. This comprises about 220 pages. It 
begins with a short description of the geology of Saxony. This is 
followed by a few pages of statistics, and then come descriptions 
of the different rocks quarried in the kingdom, with a statement of 
their scientific and technical characteristics, and remarks concerning 
their use. 
Most commendable features of the volume are its excellent bibli- 
ography of scientific and technical works on minerals and rocks, its 
lists of Saxon dealers in museum material, of laboratories for the 
1 Steinbruchindustrie und a ete S Technische Geologie nebst 
praktischen Winken fiir die Verwertung von Gesteinen unter pog Be- 
rücksichtigung der Steinindustrie des ERREA Sachsen, etc. n Dr, Q. 
Berlin, Gebrüder Borntraeger, 1899. xvii + 428 ap. PL VI; 
Fig. 17. 
