FEBRUARY 1, 1901.] 
mandible and the hyoid arch and whose mor- 
phological relations seem to be the same as those 
of the mammalian chorda. The editors an- 
nounce the addition of Dr. Lewellys F. Barker, 
of the University of Chicago and Rush Medical 
College, to the staff of editorial collaborators. 
In an article entitled ‘The Recent Develop- 
ment of Method in Theoretical Physics,’ pub- 
lished in the January, Monist, Professor Ludwig 
Boltzmann, formerly of Vienna but now of the 
University of Leipsic, has presented a trench- 
ant criticism of the philosophical tendencies 
now dominating physical research. Professor 
Boltzmann is an outspoken votary of the clas- 
sical or atomistic physical philosophy which 
culminated in the labors of Faraday and Max- 
well; and after rapidly sketching the rise and 
development of the mechanical philosophy he 
proceeds to subject to searching scrutiny the 
views of the energeticians (Ostwald, Helm, 
etc.) and the phenomenologists (Kirchhoff and 
Mach). While not underrating the achieve- 
ments of either of these two recent schools of 
physical theory, he asserts that the early ac- 
quisitions of the atomistic inquirers could never 
have been reached by energetics or by phe- 
nomenology. To the same number of The Mon- 
ist, MM. Vaschide and Piéron, of Paris, France, 
have contributed an erudite article on ‘Pro- 
phetic Dreams in Greek and Roman Antiquity,’ 
for which they have collected from the original 
‘sources all the data in the ancient writings re- 
lating to oneirology. The remaining articles 
are an ‘Introduction to a Psychological Study 
-of Religion,’ by Professor James H. Leuba, and 
‘Jew and Gentile in Harly Christianity,’ by Dr. 
Paul Carus. 
THE December number of the American Geol- 
ogist contains the following articles: ‘Notes 
on the Geology and Petrography of Monhegan 
Island, Maine,’ by E. C. E. Lord of Washington, 
D. C. The works are described as granitic, 
containing feldspar, olivine, pyroxene and horn- 
blende. The rocks are analyzed petrograph- 
ically and chemically and compared with rocks 
from other districts. The mass is frequently 
crossed by acid and basic dykes which are de- 
scribed and analyses given. ‘The Mineralogical 
and Petrographic Study of the Gabbroid Rocks 
SCIENCE. 
187 
of Minnesota,’ by N. H. Winchell, contains 
Chapters VIII. to X. inclusive and concludes 
the series. Chapter VIII. contains a discussion 
of Quartz Gabbro, in which is given the min- 
erals and their occurrence together with their 
chemical composition. Chapter IX., Silico fer- 
rolyte, contains a discussion of a rock extremely 
rich in magnetite containing numerous grains 
of quartz. This name has been proposed by 
Mr. Winchell to distinguish the rock from the 
ferrolyte of Wadsworth, which it resembles. 
Chapter X., ‘ Résumé and Conclusions,’ contains 
discussions of the comparative petrography, the 
mineralogical and chemical composition of the 
various types of rock studied in the prepara- 
tion of the report. Next is an interesting ar- 
ticle on ‘ Meteorology of the Ordovician,’ by F. 
W. Sardeson, which is followed by the usual 
editorial comments, a review of recent geological 
literature and personal and scientific news. 
Dr. A. DE WATTEVILLE has resigned the 
editorship of Brain. When accepting his res- 
ignation the Council adopted the following reso- 
lution: ‘‘ The Council accepts with great regret 
Dr. de Watteville’s resignation of the editor- 
ship of Brain, and desires to take this oppor- 
tunity of recording the deep debt of gratitude 
that the Society owes him for the way in which 
he has conducted the Journal for the past 
twenty years. The Council feels that parting 
with Dr. de Watteville is an event of great 
moment to the Society, for he has not only 
brought Brain to a high standard of perfection 
and secured for it a great European reputation, 
but even the existence of the Journal at the 
present time is due to his energetic action at a 
critical juncture in 1880. Moreover, the Coun- 
cil is mindful that the Society itself took origin 
on Dr. de Watteville’s initiative, at a meeting 
held at his house, on November 14, 1885.”’ 
SOCIETIES AND ACADEMIES. 
GEOLOGICAL SOCIETY OF WASHINGTON. 
At the eighth annual meeting, held Decem- 
ber 19, 1900, the following officers were elected 
for the ensuing year : 
President, J. S. Diller; Vice-Presidents, C. W. 
Hayes and G. P. Merrill; Treasurer, M. R. 
Campbell ; Secretaries, David White and F. L. 
