XV 



Page 

 Rays, fossil, from Wyoming. . 38 



Realgar 104 



Recording Secretary, Report. 68 

 Red sunsets, brilliant colors 



of 32, 61 



theories in regard to 



causes 60-61, 64-65 



Relations of Dinichthys 20 



Report of Committees . .56-60, 70 

 Corresponding Secretary. 68 



Librarian 70 



Publication Committee. . 70 

 Recording Secretary. .. . 68 



Treasurer 69 



Resident Fellows and Mem- 

 bers, list 1 14-122 



Rg^ident Members, election 



of • -Sij 55. 71 J 80, 100, 106 



Resignations of Members .34, yj , 



48, 55, 62, 72, 103 



Resolutions passed . 56-60, 71, 106, 



107 

 Rhyolyte at Yellowstone 



Park 7 



Richmond, Mass., deweylite 



from iron-mine 17 



Ripidolite in New York City. 48 



Rock-crystal, boulder of 81 



Rocky Mountain Parks, 



scenery of 108 



Rome, variety of marbles in . 102 



Ruby, enclosing spinel 21 



Russell, Mass., garnet pseu- 



domorphs 18 



Rutile 38, 49, 107 



Sacramento Valley, Cal. , In- 

 dian mythology 55 



Sahara, microscopic examina- 

 tion of sand 64 



Sam's Point, N. Y., elevated 



terraces at 27 



glaciation at 26 



Sand, microscopic examina- 

 tion of 64, 75 



of Saha,ra 64 



sonorous 72-76 



Sandstones, Chemung, with " 



screw-like casts 33-34 



head, from Staten Island, 81 



leaf-bearing 30-31 



Sapphire 53, 107 



54 



Page 

 Scenery of the Rocky Moun- 

 tain Parks 108 



Scientific influence of Grange 



associations 16 



Scotland, singing beaches ... 73 

 Screw-like casts in Chemung 



sandstones 33-34 



Self defence, methods of ani- 

 mal 53-55 



Serpentine 17 



Shales, indurated, at Bergen 



Hill 7 



Sharks, Carboniferous, armor 



of 



Shawangunk Range, N. Y. , 



glaciation of 22-30 



Silicious sinter from Yellow- 

 stone 6-7 



Silicified wood in Colorado . . 6-7 

 Silver castings from Peru. 15, 62-63 



chloride i 



native 2, 38 



ores, processes for amal- 

 gamation 1,2 



sulphide 19 



Singing beaches of the Baltic 



97-98 

 in Scotland and America 



72-76 

 Sky Top, N. Y., glacial stria- 



tion upon 28 



Smoke darkening the atmos- 

 phere 60-61 



Snow-peaks of Oregon T] 



Societies, etc., receiving pub- 

 lications of Academy. . 



138-149 

 Soil, exhaustion by sugar- 

 cane 15-16 



exhaustion in America. . 16-17 

 Sombrero Island, W. I., dust- 

 columns at 3 



Sonorous sand in America and 



Scotland 72-76 



microscopic examination 



of 75 



Sonorous sand-hills of Arabia 



and Afghanistan 98-99 



Sorghum industry 5-6 



Sounds in nature, origin of . . 75 



on beach of Costa Rica. . 76 



South Africa, crocidolite 104 



