VIII CONTENTS. 



Chapter III. — The Lower Marquette series, by C. R. Van Hise — Continued. Page. 

 Section IV. — The Ajibik quartzite — Continiieil. 

 Interesting localities — Continued. 



Ajibili Hills 308 



Goose Lake 310 



Cascade area 310 



Sees. 27and28, T.47N.,R. 27 W 312 



Republic and Western tongues 313 



Sees. 29 and 30, T. 48 N., R. 27 W 313 



Section V. — The Siamo slate 313 



Distribution, exposures, and topography 314 



Folding 315 



Petrographical character 316 



Macroscopical 316 



Microscopical 318 



Relations to adjacent formations 321 



Thickness 322 



Interesting localities 322 



Michigamme area 322 



Nonpareil mine 324 



Siamo Hills 324 



Area east of Teal Lake 326 



Eastern area 326 



West half of T. 47 N., R. 26 W 327 



Section VI. — The Negauuee formation 328 



Relations to eruptives 329 



Distribution, exposures, and topography 330 



Foldiug 332 



Relations to underlying and overlying formations 333 



Th ick ness 336 



Petrographical character 336 



Macroscopical 336 



Microscopical 366 



Interesting localities 375 



Miohigamme and Spurr 375 



Boston and Dexter areas 377 



Excelsior area 378 



Lake Bancroft area 378 



Teal Lake area 378 



Negaunee-Ishpeming area 379 



Area southeast of Ishpeming 380 



Cascade range 382 



Foster-Lo wthian area 383 



Saginaw-Goodrich area 383 



Escanaba River area 384 



Humboldt area 385 



Champion ;irea 389 



Republic area 389 



Magnetic mine area 390 



