J. V. Lewis and L. H. Bauer — Cyprine. 251 



3. Andradite, var. Polyadelphite. — The brown gran- 

 ular garnet associated with the vesuvianite approaches 

 typical andradite in composition (analysis G, by L. H. 

 Bauer) more nearly than the specimens from Franklin 

 represented by the older analyses, (H) and (I), quoted 

 by Dana : 



Analyses of Andradite from Franklin, N. J. 



(G) (H) (I) 



SiO, 34.28 34.83 33.72 



Al.,6. 3.12 1.12 7.97 



Fe.,O a 25.53 28.73 17.64 



MnO 7.41 8.82 16.70 



CaO 29.20 24.05 25.88 



MgO 39 1.42 (Ign. .08) 



99.93 98.97 101.99 



Besides the minerals named above, brown and reddish 

 brown phlogopite is also abundant in scales and crystals, 

 and in places coarse cleavable feldspars. Some of the 

 latter give extinction angles corresponding to labradorite 

 and others to anorthite. There are also very rare grains 

 of pyrite, a small amount of cleavable calcite, and a little 

 dark green pyroxene. 



October 26, 1921. 



SCIENTIFIC INTELLIGENCE. 



I. Miscellaneous Scientific Intelligence. 



1. Stratigraphy of Northwest Greenland; by Lauge Koch. 

 Med. dansk geol. Forening, 5, 1920, No. 17, 78 pp. map, 1 : 2,500,- 

 000 ; sections, views and diagrams ; bibliography of 29 titles. — 

 The Second Danish Thule Expedition to North Greenland in 

 1916-18, headed by K. Rasmussen, included Lauge Koch as geolo- 

 gist, who has presented a valuable summary of his results. A 

 great part of the region consists of a plain of Archean gneiss, 

 sloping gently to the northwest, where it is covered by nearly 

 horizontal early Paleozoic strata, 400 meters in maximum thick- 

 ness, consisting of conglomerates, sandstone, slate and limestone, 

 apparently of shallow-water formation. Non-disintegrated 

 feldspar grains in the coarser strata and a prevailing red color 



