1894.] Editorials. 685 
which Major Powell is responsible, since the management of that depart- 
ment was of his own selection. The amount of work done in other depart- 
ments of paleontology by the Survey is much less than it should have 
been. It is not necessary to call the attention of the present director 
of the Survey to the subject. An able paleontologist himself, he is not 
likely in his administration to neglect a department which is the life- 
blood of the science of geology. And, apart from its relations to 
geology, it has an especial importance of its own, which it is the busi- 
ness of a great government survey to foster. 
In the later years of the Powellian period, the Survey made up for 
lost time in the quantity and quality of its stratigraphic work. It 
may be truthfully said that during the last five years no organization 
of the kind has turned out so large an amount of excellent original 
stratigraphie work at various and remote parts of the country. The 
habilitation of the Columbia, the Appomattox and Tuscaloosa forma- 
tions of the Atlantie slope, and the correlation of the older paleozoic 
beds of the Appalachian Mountains must be credited to the geologists 
of the Survey. S0 also the definition of the epochs of the Cretaceous 
and Cenozoic beds of the coastal plain. The analysis of the strata 
of the Sierra Nevada has been immensely advanced, and much work 
has been done in the field of glacial geology. We look for a continu- 
ation of this work; and if some of the omissions of the past are sup- 
plied, the Survey will probably have the unanimous support of the 
scientific world. 
—TueE publication of the geological map of Pennsylvania by the 
State Survey marks an era in the history of that organization. Pro- 
fessor Lesley, the director, has issued an atlas containing the map of 
the State in four sheets, together with detailed maps of Bucks and 
Montgomery Counties, with maps of the bituminous coal areas of the 
western counties, with others. An atlas of county maps is issued at 
the same time. The geological maps are well colored, and are a credit 
to the State. The amount of the appropriation did not permit of the 
insertion of the topography by contour lines in either the State or 
County maps. This is to be regretted, but may be left for some future 
survey, which may issue a new edition. An important and obscure 
problem has been greatly elucidated by Dr. B. S. Lyman, the author 
of the Montgomery-Bucks map, i. e., the analysis of the red beds which 
are generally referred to the Trias. His division of the formation into 
several horizons will aid research, and we await the evidence of their 
paleontology to determine the relations of some of them. Another 
