398 ADDENDA. 



Wbhler, P. Ueber den Pachnolith von Gronland. [Pachuolite from 



Greenland.] Konig. Oes. Wiss. Gotthigen, No. 23. [Abstract in 



N. Jahrh. Heft i. pp. 58, 59.] 



A crystallized mineral, apparently rhombic, on cryolite from Grreen- 



land, on analysis was found to be a hydrated cryolite, with ^ of the 



sodium replaced by calcium. Erom its falling to powder when heated, 



Wiihler meant to call it Pgroconite, but now thinks it is Knop's Fach- 



nolite. r. W. 11. 



Zezi, P. Cenni intorno ai lavori per la Carta Oeologica d'ltalia in 



grande scala. Ann. Min. Agri. Ind. Gomm. 

 Zincke, Rev. F. B. A Walk in the Orisons. Pp. xv, 368. 8vo. 



London. 

 Hefers to the denudation of valleys by their streams, pp. 2-4, 88-91, 

 294-296 ; earth-pillars, pp. 43-45 ; excavation of tarn by falling 

 masses of snow, p. 198. W. W. 



[Report sent by the Society to the Provincial Landtag on Geog- 



nostical Researches in the Province of Prussia.] Schrift. phys.- 



oekon. Ges. Konigsherg. (Bericht), Jahrg. 16. 

 Report upon Geographical and Geological Surveys west of the One 



Hundredth Meridian, iii. Geology. Pp. 681, 13 pis. 4to. 



Washington. 

 Reports by Gr. K. Gilbert on part of Nevada, Utah, California, and 

 Arizona ; on parts of New Mexico and Arizona ; by A. R. Marvine, 

 on the Geology of the Route from St. George, Utah, to Gila River, 

 Arizona ; by E. Gr. Howell, on the Geology of parts of Utah, Nevada, 

 Arizona, and New Mexico ; by F. J. Stevenson, on Colorado [already 

 noticed, p. 131] ; Mineralogical Report by Dr. 0. Loew. Prom note in 

 Amer. Nat. vol. x. p. 622. W. W. 



Reports and Official Letters to the Kaitakushi, by Horace Capron, 



Commissioner and Adviser, and his Foreign Assistants. Pp. 748. 



8vo. ToJcei. 

 Prof. W. P. Blake. Pp. 1-16. On the Mineral Resources of Tesso, 

 viz. : — The Lead Mines and Furnaces at Tchinowatari ; Geology of that 

 neighbourhood ; Gold and Copper Mines at Kakumi ; Iron at Kobui ; 

 Coal near Usibets ; Gold Mines of Kunnui (in coarse gravel) ; Petroleum, 

 Volcano Bay ; Sulphur in many volcanic peaks and inactive volcanoes ; 

 Gold and Silver in Sado ; and Magnetic Iron Ore, Nambu in Nippon. 



Benjamin Smith Lyman. Preliminary Report on the First Season's 

 Work of the Geological Survey of Yesso. Pp. 115-160. The foUow- 

 ing groups of rocks occur : — Alluvium, new and old (contains beds of 

 lignite and peat) ; Yolcanic pebble-rocks ; Volcanic Rocks ; Rocks of 

 the Toshibets Karafto System of Folds ; Coal- bearing Rocks, or Rocks 

 of the Horumui Kuril System of Folds ; Rocks of the Horumui Karafto 

 System of Folds ; Rocks of the Toshibets Kuril System of Folds. The 

 Kayanoma and Horumui Coal Fields are described ; the latter is pro- 

 bably Tertiary. An assay of the coal made by Mr. Munroe is given. 

 The Kudow coal is insignificant. Iron Sand is most abundant on the S. 



