— 494 — 



tolite. 29; — On some new Localities for tlie Mineral Diatomite, witli 

 notes on the Chemical Composition of the Specimens exhibited. 30. — 

 J. S. G. Wilson and W. I. Macadam : Diatomaceous Deposits in Skye. 35. 



— W. I. Macadam: On the Chemical Composition of the Mineral Bruia- 

 chite found hy Mr. T. D. Wallace, of Iverness, at Loch Bhruithaich. 42. 



— C. 0. Trechmann: Barytes from Addiewell, West Calder, in Midlo- 

 thian. 49. — E. H. Sollt : Francolite , a variety of Apatite frora Levant 

 Mine, St. Just, Cornwall. 57. — H. Eobinson : Two Analyses of Crystals of 

 Apatite. 59. — E. H. Solly : Anglesite from Portugal. 61. — E. Kinch : On Platt- 

 nerite. 63 ; — On a new variety of Mineral from Cornwall. 65. — J. H. 

 Hampton: Cassiterite of the Straits Settlements. 71. — W^. I. Macadam: 

 On the Occurrence of considerable Deposits of Limonite (Bog Iron Ore) in 

 North-west Eoss-shire. 72; — Further Note on Agalmatolite in Gairloch 

 Parish, Eoss-shire. 74; — On the Analysis of a Sample of Tale used in 

 Paper-making. 73 ; — Analyses of Samples of China Clay (Kaolinite), Corn- 

 wall. 76. — D. Honeymän : Note on the Identification of the Scotch and 

 New Brunswick „Alhertites", 77. — F. H. Butler: Note on Schorlaceons 

 Eocks from near St. Anstell. 79. — J. W. Jüdd: On the Eelations het- 

 ween the Solution-planes of Crystals and those of Secondary Twinuing; 

 and on the Mode of Development of Negative Crystals along the former. 

 81. — H. A. MiERs: Index to Mineralogical Papers etc. 1885. 93. 



12) The American Journal of Science. Edited hy J. D. and E. S. 

 Dana. [Jb. 1888. I. -380-] 



1888. Januar. No. 205. Vol. XXXV. — . S. Newcomb and C. E. Dut- 

 ton: Speed of Propagation of the Charleston Earthquake. 1. — J. D.Dana: 

 History of the changes in the Mt. Loa Craters. Part 1. Kilauea. (PI. I.) 

 15. — E. B. EiGGs : Analysis and Composition of Turmaline. 35. — H. S. 

 Williams : Different types of the Devonian System in North America. 51. 



— 0. C. Marsh: Notice of a New Genus of Sauropoda and other new 

 Dinosaurs from the Potomak Formation. 83 ; — Notice of a New Fossil 

 Sireniau, from California. 97. 



Februar. No. 206. — T. C. Mendenhall: Seismoscopes and Seismo- 

 logical Investigations. 97. — G. H. Williams: Petrographical Microscope 

 of American Manufacture. 114. — W. B. Clark: New Ammonite which 

 throws additional light upon the geologial position of the Alpine Ehaetic. 118. 

 W. J Mc Gee : Three Formations of the Middle Atlantic Slope. (PI. II.) 120. 



13) Proceedings of the Academy of Natural Sciences of 

 Philadelphia. 8". Philadelphia. [Jb. 1887. L -400-] 



Part III. October— December 1886. — G. A. Koenig : Manganese Zinc 

 iSerpentine fi'om Franklin, N. J. 350. — A. Heilprin : On Miocene Fossils 

 from Southern New Jersey. 351. — Ohas. S. Dolley: On the Helictites 

 of Luray Cave. 351. — G. A. Koenig: On Schorlomite as a variety of 

 Melanite. 355. — H. F. Osborn: Observations upon the Upper Triassic 

 Mammals , Dromatherium and Microconodon. 359. — * ¥j A. Genth : On 

 an undescribed meteoric Iron from East Tennessee (Plates IV a. V). 366. 



