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SCIENCE: 



A. "WEEKLY JOURNAL OF SCIENTIFIC PROGRESS. 



Vol. II. No. 32, February 5, 1881. 



CONTENTS. 



On Matter as a Form of Energy, by Prof. A. E. D jlbear ; Recent Additions to the E. M. Museum at Princeton College, by Henry F. 

 Osborn ; The Classification of Science, II., by Rev. Sa-nuel Fleming; Tne Rotary Power of Commercial Glucose, by H. W. 

 Wiley; New Portable Microscope ; On Chicken Cholera: A Study of the Conditi >ns of Non-Recidivation and of Some Other 

 Characteristics of this Disease, 1., by M. L. Pasteur ; On the First Comet of 1861, and the M Ueors of April 20, by Prof. Daniel 

 Kirkwojd; Recurring Periods in the Weather, by Janes H. Gardiner ; Correspondence; N Jtes, Astronomical, Chemical, etc., 

 etc., etc. 



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