Miscellaneous Intelligence. 299 



F. P. Whitman : Photographic experiments on the color of the sky. 



J. W. Moore : Galvanometer for the vertical lantern. — Two strokes of lightning. 



A. A. Michelson and E. W. Morley : Description of apparatus for making a 

 light wave the standard of length. 



R. B. Pulton : Novel form of electro-magnetic telephone. 



B. L. Nichols and W. S. Franklin : Experiment on the direction and velocity 

 of the electric current. — Spectro-photometric comparison of sources of artificial 

 illumination. 



W. H. Bristol : New pressure indicator. — New self -registering thermometer. — 

 New self-registering barometer. 



E. Merritt : Efficiency of incandescent lamps. 



J. B. Webb : Floating dynamometer. — Impact in the injector. — Overhauling in 

 a mechanical power. 



M. A. Yeeder . Causes of sudden variation of atmospheric pressure. 



Section C.—Chemistnj. 

 R. B. Warder : Co-efficients of volatility for aqueous chlorhydric acid. 

 W. A. Notes : On a new method for the determination of the atomic weight 

 of oxygen. — On the oxidation of nitro-p-xylene with potassium ferrocyanide. 



F. P. Dewey : Hampe's method of determining cuprous oxide in metallic copper. 

 F. B. Power : On the constituents of wintergreen leaves. 



IS. B. Newberry: Propylidene di-ethyl and di-methyl ethers. — The safety of 

 commercial kerosene oils. 



Thomas Taylor : A new vegetable dye. — The crystals of butter and fat. 



E. B. S. Bailey : On the presence and significance of ammonia in potable 

 waters. 



C. F. Maybery and H. H. Daw: Composition of salt brines in Northern Ohio. 

 Wm. P. Mason : Fatal poisoning by carbon monoxide. 



Albert W. Smith : Lake Erie water at Cleveland, Ohio. 



F. H. Morgan : Some notes on progress in chemical methods of water analysis, 

 with especial reference to ammonia process. — Note upon iodine as a reagent in 

 the analysis of drinking water. — Note on the final product of the action of con- 

 centrated sulphuric acid on sugar. 



W. L. Dudley : Some modifications of the methods of organic analysis by com- 

 bustion. 



W. 0. Atwater: The chemistry of fish. — The quantities of nitrogen in pro- 

 tean compounds. 



Section D. — Mechanical Science and Engineering. 



J. E. Denton : On the possibility of identifying dry or saturated steam by 

 visual observation of a jet of such steam flowing into the atmosphere. — Relative 

 economy of high speed engines of less than 50 h. p., using steam by expansion 

 and throttling respectively. — On the influence of moisture in steam upon the 

 steam consumption per h. p. of engines of less thau 50 h. p. 



Wolfred Nelson : The Panama canal as it is. 



R. S. Peary : Recent Nicaragua ship canal surveys. 



D. S. Jacobus : Effect of friction at the connecting rod bearings on the forces 

 transmitted. — General solution of the transmission of force in a steam engine 

 including the action of friction, acceleration and gravity. 



R. H. Thurston: The second law of thermodynamics. 



W. J. Keep, C. F. Mabery and L. D. Vorce : The influence of alumiuum upon 

 cast iron. 



0. H. Landreth : The economical production of charcoal for blast furnace pur- 

 poses. 



Section E. — Geology and Geography. 



G. C. Broadhead : The geological history of the Ozark uplift. 



F. W. Simonds : The Archimedes limestones and associated rocks in North- 

 western Arkansas. 



Alexander Winchell : Systematic results of a field study of the Archaean 

 rocks of the northwest. 



