576 Scientifie Serials. [ September. 
For the reasons given, the terrestrial theories were regarded as inad- 
equate, and the conviction was expressed that we must look to some as- 
tronomical cause for an explanation of the phenomena of the Ice Period. 
May 15th. Mr. I. C. Russell read a paper on the Ancient Glaciers 
of New Zealand, and Mr. A. A. Julien remarked on the Search for 
Flint Implements in the Valley of the Saone. 
May 29th. The following papers were read: On Determinations of 
Specific Gravity by the Arabians of the Twelfth Century, by Dr. H. 
Bolton; Notice of Recent Investigations as to a Change of the Earth’s 
Axis at the Close of the Tertiary, by Professor B. N. Martin. 
SCIENTIFIC SERIALS." 
American JOURNAL oF SCIENCE AND Arts. — August. Note on 
the Development and Homologies of the Anterior Brain-Mass_ with 
Sharks and Skates, by B. G. Wilder. The Greenstones of New Hamp- 
shire and their Organic Remains, by G. W. Hawes. 
Tur GEOLOGICAL Macazing.— July. The Carrara Marbles, by G. 
A. Lebour. Distant Transport of Volcanic Dust, by A. E. Nordenski- 
öld. On the Mechanics of Glaciers, by D. Burns. Ice and Ice-work in 
Newfoundland, by J. Milne. 
Tue GroGrapuicaL Magazine. — July. Statistics of Da 
Greenland. The Voyage of the Challenger, by J. E. Davis. The 
Andaman Islands, by F. A. de Roepstorff. A Journey into the Ara- 
bian Desert of Egypt, by Drs. Schweinfurth and Giissfeldt. Verraz- 
zano, by R. H. Major. 
JENAISCHE ZEITSCHRIFT FÜR NATURWISSENSCHAFT. — April 15th, 
Ueber Ontogenie und Phylogenie der Insekten, von Paul Mayer. 
ANNALS AND Magazine or Naturat History. — July- On the 
Affinities of the Anthozoa Tabulata, by G. Lindstroom. Eozoin Cana- 
dense according to Hahn, by J. W. Dawson. . 
MONTHLY MicroscorrcaL JOURNAL. — July. On the Rotifer Con: 
ochilus volvox, by Henry Davis. On the Abbé Count Castracane 8 
Photographs of Nobert’s Nineteenth Band, by H. C. Sorby- ae 
Aperture of Object Glasses, by F. H. Wenham. On the Limits of the 
Optical Capacity of the Microscope, by Professor Helmholtz, with à 
Preface by Dr. H. Tripp. 
1 The articles enumerated under this head will be for the most part selected. 
nish 
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