Review of Recent Geological Literature. 317 
To compute the volumes divideeach weight by the specific gravity 
ofthe substance, giving the ratio of volumes. Add together those 
forming the original sediments and compare with the volumes of the 
several products of metamorphism. The compution for grossularite is 
as follows:— 
9'8—2'6 = 3°83. s"vol:.of quarta2. 
4.1°7—2'5 mh Ta Eh : vol. of kaolinite. 
48°5—2'6 2 Bre ; vol. of calcite. 
—. 39.2 ; vol. of sediments. 
72°8—3'5 —=20°S ; vol. of garnet. 
21°4— °00197= 10830; vol. ot carbon dioxide. 
5°8— .00081— 7148 ; vol. of water vapor. 
Dividing each of these volumes by 39 2, to compare them to the vol- 
ume of the sediments as a unit, gives the composition by volume as 
indicated in the table. 
MONTHLY AUTHOR’S CATALOGUE 
OF AMERICAN GEOLOGICAL LITERATURE 
ARRANGED ALPHABETICALLY. 
AGASSIZ, ALEXANDER. 
An expedition to the Maldives (Am. Jour. Sci., vol. 13, pp. 
297-308, Apr. 1902.) : 
AMI, H. M. 
On Belinurus Kiltorkensis, Baily (Am. Geol., vol. 29, p. 188, Mar. 
1902.) 
ANDERSON, F. M. 
The physiographic features of the Klamath mountains. (Jour. 
Geol., vol. 10, pp. 144-159, Feb.-Mar., 1902.) 
ARNOLD, DELOS AND RALPH. 
The marine Pliocene and Fleistocene stratigraphy of the coast 
of southern California. (Jour. Geol., vol. 10, pp. 117-138, Feb. 
Mar., 1902.) 
BAIN, H. FOSTER. 
Individuals of Stratigraphic Classification: Discussion. (Jour. 
Geol., vol. 10, pp. 139-142, Feb.-Mar., 1902.) 
BARRELL, JOS. H. 
Physical effects of contact metamorpnhism. (Am. Jour. Sci., vol. 
13, pp. 279-296, Apr,, 1902. 
BASTIN, EDSON S. 
A Permian glacial invasion. (Am. Geol. vol. 29, pp. 169-170, 
Mar. 1902.) 
BEECHER, GC. E. 
Note on a new Xiphosuran from the Upper Devonian of Penn- 
Sylvania. (Am. Geol., vol. 29, pp. 143-146, Mar., 1902. 
