Xll BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 

 Chadwick : 



Figure 1 — Correlation of Clinton strata between Genesee and Os- 

 wego rivers 382 



" 2— Tentative correlations of Clinton strata east of Oswego 



River 838 



" 3 — Reconstructed stratigraphic diagram of Eontaric strata 

 and overlying beds from Rochester to pre-Niagaran 

 erosional limit of the series in present line of outcrop 3.")('. 

 *' 4 — Diagram of thin basal divisions of the "Clinton," from 



Rochester eastward to Yeroua only 358 



" 5 — Historical chart of "Clinton" classification SC^l 



Wherry : 



Figure 1 — Crystalline limestone showing alteration to amphibolite. 378 



" 2 — Quartz-mica schist with sillimanite 379 



" 3 — Photomicrograph of quartz-mica schist with sillimanite. 381 



" 4— Photomicrograph of quartz-mica schist with garnet 381 



" 5 — Photomicrograph of quartz-mica showing rounded zircons 381 

 " G — Photomicrograph of granite, showing angular zircons, for 



comparison 381 



" 7 — Quartz-mica schist showing invasion by granite 382 



" 8 — Quartz-mica schist showing invasion by granite 383 



" 9 — Photomicrograph of sheared granite, for comparison with 



quartz-mica schist 387 



" 10 — Photomicrograph of graphite-bearing quartzite 387 



" 11 — Photomicrograph of basic gneiss 387 



" 12 — Photomicrograph of basic gneiss showing rounded zircons 387 

 " 13 — Basic gneiss showing alternation of dark and light bands 390 



" 14 — Granite showing streaks of dark minerals 392 



Bagg : 



Figure 1 — Section of limestone quarry at Neenah, Wisconsin 395 



Miller : 



Figure 1 — Geologic map of central portion of Lake Placid quad- 

 rangle 428 



" 2 — Relations of Keene gneiss to other rocks on the southern 



brow of Cobble Hill, in the Schroon Lake quadrangle. 444 

 " 3 — Highly generalized northeast-southwest structure section 



through the Adirondack anorthosite body 454 



Daly : 



Figure 1 — Location of litchfieldite in Litchfield, Maine 464 



" 2 — Schists cut by litchfieldite at locality A, figure 1 460 



Kindle : 



Figure 1 — Salt efilorescence 472 



2 — Salt efflorescence 473 



" 3 — Pseudomorphs of salt crystals 477 



" 4 — Desiccated saline clay from Salt RiA'er, Northwest Terri- 

 tory 478 



" 5 — Mud-crack in a fresh-water mixture of slaked lime 480 



6 — Mud-crack in a salt-water mixture of slaked lime 482 



Figures 1, 8 — Desert salt crusts 483 



