Personal and Scientific News. 259 
Part IV, of the Geology of the Boston Basin, deal- 
ing with the rocks of the Neponset river valley, is nearly 
ready for publication. Prof. W. D. Crosby has spent some 
time during the winter in economic and geologic work in 
the Joplin district of Missouri. It is his intention to con- 
tinue in Colorado, during the coming summer, the studies in 
which he has been interested for some time past, and upon 
which several papers have alread)' been published. 
Prof. Brogger's Lectures at Johns Hopkins will be- 
gin April 25th, and will close May 3d, and will be attended 
by excursions into the region about Baltimore. The subject 
discussed will be "Principles of a genetic classification of 
the Igneous Rocks," to be followed by five lectures on "The 
late geological history of Scandinavia, as shown by changes 
of level and climate in southern Norway since the close of 
the Glacial epoch." The lectures will be delivered in the 
English language. Parties desiring to participate should 
communicate with Prof. W. B. Clark at an early date. 
Professors Branner and Newson of Stanford Uni- 
versity have prepared and issued the second edition of their 
syllabus of a course of lectures on Economic Geolog)^ It 
is designed for students both while in college and after- 
wards, and is provided with blank pages for the purpose of 
entering notes and keeping the owner's ready knowledge up 
to date. More space is given to the economic geolog}- of 
this than that of foreign countries. It is illustrated with 
line-sketches of mines and rock sections. Its cost is $2. 75. 
It has 354 pages and 141 cuts. Communications should be 
addressed to the authors at Stanford University, California. 
During the Field Season of 1899 Dr. T. Nelson Dale, 
with his assistant, Mr. ¥. H. Moffit, was engaged upon stra- 
tigraphical work in Vermont. In February last he gave, be- 
fore the Berkshire Historical and Scientific society, a contin- 
uation of the geology of Mount Greylock, starting in its his- 
tory where the description ends in part III of Monograph 
XXIII, U. S. G. S., and reviewing the later phases. A Pleis- 
tocene lake which encircled the northern portion of the 
mountain he has named lake Bascom, after professor Bascom 
of Williams college. The work upon Bird mountain, Ver- 
mont, has been finished, and is to appear in the 20th Annual 
Report, U. S. Geological Survey. 
The Mont-Blanc and Simplon Rocks. The Minera- 
logical and Geological Bureau of Geneva proposes to gather 
together and prepare for scientific and industrial use, petro- 
graphic collections of the crystalline masses of the Alps, 
based on the most recent monographs. 
It is beginning with the series of rocks from the Mont- 
Blanc mass, the composition of which is minutel\- described 
