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Diazo-Caffein. M. Gomberg. 
The Preparation of Tri-phenyl-chlor-me- 
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The Action of Sodium Methylate upon 
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Some Secondary Cyclic Amins. 
Howard. 
On the Constitution of the Oxy-azo-Com- 
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On Naphthalene-azo-alpha-naphthol and 
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On the Condensation of Chloral with 
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A Pneumatic System for Preventing the 
Bursting of Waterpipes through Freezing. 
N. M. Hopkins. 
Note on the Occurrence of Chromium, 
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On the Universal Distribution of Ti- 
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The Atomic Weight of Calcium. T. W. 
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The Iodometric Determination of Small 
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Preliminary Report on a New Method for 
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Analysis of Oils. A. H. Gill. 
Examination of Lemon Flavoring Ex- 
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The Composition of American and Foreign 
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A Determination of the Transformation 
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On the Derivatives of Isuretinic and 
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The Reichert Figure of Butter. 
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‘The Determination of Nickel in Nickel 
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Notes on the Estimation of Total Carbon 
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Electrolysis of Metallic Phosphate Solu- 
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On the Determination of Volatile Com- 
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An Electrolytic Study of Benzoin and 
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The Quantitative Estimation of Boric 
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Some Boiling Point Curves. J. K. Hay- 
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Electrolytic Determinations and Separa- 
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The Precipitation of Copper by Zinc. J. 
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Derivatives and Atomic Mass of Pal- 
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Action of Hydrochloric Acid Gas upon 
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