INDEX. 



837 



Sprague (T. B.). A New Algebra, by means of 

 which Permutations can be transformed in a 

 variety of ways, and their Properties investi- 

 gated, 399. 



Stachannularia (fossil), 318. 



Stewart (C. Hunter), M.B., D.Sc. On the Varia- 

 tions in the amount of Carbonic Acid in the 

 Ground-Air (Grund-luft of Pettenkofer), 695. 



I. — On the Estimation of Carbon in Organic 



Substances, by the Rjelhdal Method. II. — Its 

 Application to the Analysis of Potable Waters, 

 743. 



Stigmaria (fossil), 350, 610. 



Strophanthidin, Chemistry of, — a Decomposition Pro- 

 duct of Strophanthin. Preparation, 1. Solu- 

 bilities and General Characters, 2. Elementary 

 Analysis, 3. Reactions, 4, 5. By Professor 

 Thomas R. Fraser, M.D., and Leonard 

 Dobbin, Ph.D., 1. 



Strophanthin. See Strophanthidin. 



Stylonitrus (fossil), 151, 519. 



Sutroa, a Contribution to the Anatomy of. 

 Frank E. Beddard, 195. 



T 



By 



Tait (Professor P. G). On Impact, Part II., 381. 



On the Path of a Rotating Spherical Projectile, 



427. 

 Teall (J. J. H.) and Horne (John). On Borolan- 



ite, — an Igneous Rock intrusive in the Cam- 

 brian Limestone of Assynt, Sutherlandshire, 

 and the Torridon Sandstone of Ross-shire, 163. 



Tetramethylsuccinic Acid, Synthesis of, 365. 



Torridon Sandstone of Ross-shire and Cambrian 

 Strata in Assynt. By John Horne and J. J. 

 H. Teall, 163. 



Trigonocarpus (fossil), 356, 612. 



U 



Urnatopteris (fossil), 319. 



W 



Walker (Jajies), M.D., and Professor A. Crum 

 Brown. Electrolytic Synthesis of Dibasic 

 Acids. Part II. — On the Electrolysis of the 

 Ethyl-Potassium Salts of Saturated Dibasic 

 Acids with Side Chains, and on Secondary Re- 

 actions accompanying the Electrolytic Synthesis 

 of Dibasic Acids, 361. 



White (Philip J.), M.B. The Skull and Visceral 

 Skeleton of the Greenland Shark (Lxmargus 

 microrfiphalus), 287. 



Young (James Buchanan), M.B., D.Sc. The 

 Chemical and Bacteriological Examination of 

 Soil, with special reference to the Soil of 

 Graveyards, 759. 



19 0CT.9S 



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