SCIENCE. iii 



SCIENCE: 



A. WEEKLY JOURNAL OF SCIENTIFIC PROGRESS. 



Vol. 1, No. 1 July 3, 1880. 



CONTENTS. 

 The United States Observatory, by Professor Edward S. Holden. A Bit of Summer Work, by Professsor Burt G. Wilder, M. D. 

 Electricity as Power, by Francis R. Upton, Esq. ; Diatomaceas v. Desmidiaceae, by Professor H. L. Smith ; Errors of Refraction 

 in the Eyes of Microscopists, Mr. Redout; Practical Use of Science, Professor Huxley; Electrical Insects, Mayer Davis. 



Vol. 1, No. 2 July lO, 1 880. 



CONTENTS: 



Uniform Time, Professor Ormond Stone ; Water Supply of Cities, Dr. H. C. H. Herold ; Edison Electric Light, the Editor ; Coming of 

 Age of the Origin of Species, Professor Huxley ; Improvement in Dynamo-Electric Currents, Professor C. W. Siemens; Visual 

 Telegraphy; Observations on Silvering Glass ; Water Analysis ; Flight of Birds, R.*A. Proctor ; Belgian Diatoms, Professor H. L. 

 Smith ; The Heliograph. 



Vol. 1. No. 3 July 17, 1 880. 



CONTENTS. 

 Remarkable Peculiarity of an Anthropoid Brain, Dr. E. C. Spitzka ; on Multiple Spectra, J. Norman Lockyer; Bi-sulphide of Carbon 

 in Microscopy, J. W. Stephenson; Co-operation in Science, the Editor; Laboratory Experiment, Professor C. M. Mansfield ; 

 A Darwinian Study, Alfred R. Wallace ; A Fourth State of Matter, W. Crookes ; Note on above, Duke of Argyll ; Fresh Water 

 Medusa, E. Ray Lankester ; Evolution of Locomotive i in America. 



Vol. 1, No. 4 July 24, 1880. 



CONTENTS : 



American Taxidermy, W. T. Hornaday ; Monstrosities in American Coleoptera, with 26 illustrations, Professor Horace F. Jayne. 

 American Association for the Advancement of Science, the Editor; Limnocodium Victoria, Professor Geo. J. Allman ; The 

 Electric Lamp (2 Illustrations), M. Tchikoleff; Let er to the Royal Society, Lt. Colonel W. A. Ross; the D-Line Spectra, Lt. 

 Colonel W. A. Ross ; Important Discovery in Chemistry. 



Vol. I, No. 5. ------ July 31,1880. 



CONTENTS. 



The Cerebral Fissures of the Domestic Cat (2 illustrations), Prof. Burt G. Wilder, M. D. Plea for the Metric System in 

 Microscopy, Dr. R. H. Ward. Fresh Water Rhizopods of North America (Dr. Leidy's Work), the Editor (27 illustrations). 

 Fourth State of Mattei, Dr. J. Puluj, translated for Science by Dr. G. Glaser. The Magnet in Medicine, by Dr. P. Richet, 

 iranslated lor Science by Thomas B. Columbia. Tuckahce, Mrs. M. J. Young. 





EACH NUMBER ALSO CONTAINS INTERESTING NOTES AND SCIENTIFIC 

 MATTERS OF CURRENT INTEREST. 



Special notice is directed to No. 5, containing ttuenty-two engravings, reproduced from Professor Leidy's great work on 

 Rhizopods, which have been specially drawn and engraved for " Science." 



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