^^^. 



0-44^' 



CONTENTS. 



Pajie 



Art. LVII. — Archelon isch^a-os: A new gigantic Cry ptodire 

 Testudinate from the Fort Pierre Cretaceous of South 

 Dakota; by G. R. Wieland (With Plate Vf.) .. 399 



LVIII. — Examination of Specimens from Chichan-Kanab, 



Yucatan; by J. L. Howe and IT. D. Campbell 413 



LIX. — Method for the Separation of Aluminum from Iron ; 



by F. A. GoocH and F. S. Havens _ .. _ 416 



LX. — Chemical Composition of Hawaiian Soils and of the 

 Rocks from which they have been derived ; by A. B. 

 Lyons __ _. 421 



LXL— The Original Trenton Rocks; by T. G. White 430 



LXIL — Jurassic Formation on the Atlantic Coast ; by O. C. 



Marsh _ 433 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics— Chemistrj of the Cyanide Process, Bodlaexdeb: 

 Beryllium not isomorphous with the metals of the magnesium group, Retgers, 

 448. — Non-existence of two Orthophthalic Acids, H. L. Wheeler: Humphrej'" 

 Davy, Poet and Philosopher, T. E. Thorpe: Chemistry in Daily Life, Lassar- 

 CoHN, 449. — Practical Methods of Organic Chemistry, Gattermaxn: Chemi- 

 cal Analysis of Iron, A. A. Blair: Physikalisch-chemische Propadeutik, 

 H. Grtesbach: Methods of determining the dryness of saturated steam and the 

 condition of steam gas, 0. Reynolds, 450. — Temperature in Geissler tubes, R. 

 W. YfooD: Images in the field of a Crookes tube, N. Odmoff and A. Samoi- 

 LOFF: Kontgen rays, Haga, 452. — Principles of the Transformer, F. Bedell, 

 453.— Elements of Physics, Vol. 11, E. L. Nichols and W. S Franklin, 454. — 

 Alternating Currents and Alternating Current Machinery, D, C. JFackson and 

 J. P. Jackson, 455. 



Geology and Mineralogy — Palaeozoic fossils from Baffinlan#, E. M. Kindle, 455. 

 — 16th Annual Report of United States G-eological Survey, 456. — Biological 

 Lectures, Wood's Holl, 457. — Dinosaurs of North America. 0. C. Marsh, 458. 

 — Manual of Determinative Mineralogy with an introduction on Blow-pipe 

 Analysis, G. J. Brush and S. L. Pexfield, 459. — Mikroskopische Physiogra- 

 phic der massigen Gesteine, E. Rosenbusch: Minerale des Harzes, 0. Lued- 

 ecke, 460. — Mineralogie de la France et ses colonies, A. Lacroix: Vienna 

 Collection of Meteorites, 461. — Phosphate deposits in Tennessee, J. M, Saf- 

 ford.— National Academy of Sciences, 462. 



botany — Timber Pines of the Southern United States, C. Mohr, 463. — Richards 

 on increase of activity in respiration after injury, 464. 



Obituary — Baron Ferdinand yon Mueller. K.C.M.G., 464. 

 Index, 465. 



