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NOTICE. 



"TriT^TE are preparing a list of Professional Scientists, and of all those engaged in scientific investiga- 

 te)* tions in the United States. We ask the co-operation of our subscribers and the heads of 

 Universities and Colleges, by forwarding to us lists of Scientific men connected with such institutions. 



We invite all engaged in original research, whether professionals or amateurs, to forward their names 

 and addresses for registration, giving their names and style in full, and the particular line of research followed. 



We desire that the list of Physicists shall be very complete as we understand that such a list does not 

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We guarantee to forward all names and addresses received by us to the Smithsonian Institute, Washing- 

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Compliance with this request will result in many conveniences to those concerned, as when the lists 

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SCIENCE: 



A. "WEEKLY JOURNAL OE SCIENTIFIC PROGRESS. 



Vol. I, NO. 13. 



September 25, 1880. 



CONTENTS. 



_ _/ Edwin F.Sawyer; Notes on 

 Woodbury ; Law of Land Form- 

 R. Baker ; Types of Pottery, 

 by Professor Edward S. Morse ; Mount Hamilton, Ual., (illustrated) ; Full Report of Meeting ot the American Society of Micro- 

 scopists, Detroit ; Preservation of Fossil Insects, by Professor J. W. Pike ; Problems in Watson's Co-ordinates ; Iron Ores of the 

 Brandon Period, by Henry Carwill Lewis; American Society of Mechanical Engineers; Physical Notes. 



Vol. I, No. 14. 



October 2, 18 8 0. 



CONTENT S. 



Dearborn Observatoiy, Chicago (Edit.) ; On Patent Laws as a Means for the Advancement of Scienre, bv Prof. B. S. Hedrick; Mean 

 Ratio of Oxygen to Nitrogen in the Atmosphere, by Prof. E. W. Morley; Maxima and Minima Tide-predicting Machine, by 

 William IVrrill ; On the Deficiencies of Meteorological Work in Data of Value to Agriculture, and Me ins tor Supplying Thuu, by 

 William McMurtrie; Preliminary Account of a Speculative and Practical Search for a Trans-Neptunian Planet, by D. P. Todd ; An 

 Improved Electro-Motor, by Theodore Wieserdanger ; Report of the Proceedings of the British Associ ition for the Advancement 

 of Science, 1880; Relation of Vermont Archaeology to that of the Adjacent States, by Dr. George 1 1. Pe kins; The Indian Census, 

 by Col. Garrick Mallery, U. S. A. ; Experiments on the S'rength of Yellow Pine, by Prof. R. H. Thurston. Books received. 



Vol. I, No. 15. 



October 9, 1880. 



CONTENTS. 



The Unitv of Nature, by the Duke of Argyll ; The Epizootic Epidemic; A Novel Celestial Object; English Criticism on the Hell 



Photophone; An Improved Microtome, bj Prof, Willard Fiailes; Paleontological Researches, I , bj Prof. Henry S. Williams; 



Note on the Zodiacal Light, by Henry Carwill Lewis ; On a Solution of Ferric Gallate and Ferric Oxalate as a Re-agenl for the 



( juantitative Analysis of Ammonia, by I'rof. N. B. Webster; Science in franco and in Germany, by Dr. C. K. Aiken; The Action 



inlight on Glass, b) 1 Qi Id ; Chemical and Physical Notes. 



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