312 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Petrology— Con tiin i< ■< 1 . 
List of rocks described^- Continued. 
Porphyrite, Merrill, 8946, 3951. 
Porphyrite, Miller and Brock, 4005. 
Porphyrite, Smith, 5025, 5059. 
Porphyrite, Turner, 5453, 5457, 5471. • 
Porphyrite, Turner and Ransome, 5471. 
Porphyrite, Van Hise and Bayley, 5704. 
Porphyrite, Winchell and Grant, 6376. 
Porphyritic diabase, Ferrier, 1813. 
Porphyritic granodiorite, Turner, 5457. 
Porphyritic theralite, Diller, 1507. 
Porphyroid (schistose), Ferrier, 1813. 
Porphyry, Keyes, 3092, 3108. 
Porphyry, Rickard, 4596. 
Prehnite, Winchell and Grant, 6376. 
Proterobase, Ferrier, 1813. 
Pulaskite, Diller, 1507. 
Pulaskite-syenite, Washington, 5873. 
Pyroxene-andesite, Turner, 5457. 
Pyroxene-bearing rock, Smyth, 5076. 
Pyroxene-epidote-schist, Brooks, 615. 
Pyroxene rock, Westgate, 6015. 
Pyroxene-syenite, Turner, 5465. 
Pyroxenite, Diller, 1507. 
Pyroxenite Ferrier, 1816. 
Pyroxenite, Kemp, 2992. 
Pyroxenite, Merrill, G. P., 3951. 
Pyroxenite, Spurr, 5173. 
Pyroxenite, Turner, 5453, 5465. 
Pyroxenite, Turner and Ransome, 5485. 
Pyroxenite-granite-gneiss, Ferrier, 1811. 
Quartz, vein, Diller, 1507. 
Quartz-aegrite porphyry, Irving, 2868. 
Quartz-alunite rock, Cross, 1191. 
Quartz-amphibole-diorite, Turner, 5473. 
Quartz-andesite, Turner, 5457. 
Quartz-augite-diorite, Ferrier, 1813. 
Quartz-augite-diorite, Turner, 5465. 
Quartz-basalt, Diller, 1507. 
Quartz-diabase, Brooks, 615. 
Quartz-diabase, Lane, 3382. 
Quartz-diabase, Van Hise and Bayley, 5704. 
Quartz-diorite, Brooks, 615. 
Quartz-diorite, Cross, 1184. 
Quartz-diorite, Cushing, 1241. 
Quartz-diorite, Spurr, 5173. 
Quartz-diorite, Turner, 5465, 5471. 
Quartz-diorite-porphyry, Turner, 5465. 
Quartz-diorite-schist, Spurr, 5173. 
Quartz-hornblende-diorite, Spurr, 5173. 
Quartz keratophyre, Weidman, 5969. 
Quartz-mica-diorite, Ferrier, 1813. 
Quartz-mica-diorite, Turner, 5457, 5465. 
Quartz-mica-porphyrite, Ferrier, 1813. 
Quartz-miea-diorite-porphyry, Iddings, 2844. 
Quartz-monzonite, Turner, 5479, 5481. 
Quartz-muscovite schist, Ransome, 4543. 
Quartz-norite-gneiss, Diller, 1507. 
Quartz pantellerite, Lord, 3573. 
Quartz-porphyrite, Lindgren, 3531. 
Quartz-porphyry, Bascom, 276. 
Quartz-porphyry, Lawson,3409. 
Quartz-porphyry, Keith, 2958. 
Quartz-porphyry, Matthew, W. D., 3798. 
Quartz-porphyry, Ries, 4622. 
Quartz-porphyry, Spurr, 5175. 
Petrology— Continued. 
List of rocks described— Continued. 
Quartz-porphyry, Tower and Smyth, 5445. 
Quartz-porphyry, Turner, 5453, 5457, 5465, 5467, 
5471. 
Quartz-porphyry, Weed, 5940. 
Quartz-porphyry, Weed and Pirsson, 5935. 
Quartz-porphyry, Williams, 6154. 
Quartz-porphyry (?), Winchell and Grant, 
6376. 
Quartz rock, Westgate, 6015. 
Quartz-schist, Clements, 1014. 
Quartz-schist, Diller, 1507. 
Quartz-schist, Watson, 5888. 
Quartz-syenite, Weed and Pirsson, 5936. 
Quartz-syenite-porphyry, Washington, 5875. 
Quartzite, Barlow, 244. 
Quartzite, Beyer, 433. 
Quartzite, Buell, 659. 
Quartzite, Coleman, 1026. 
Quartzite, Diller, 1507. 
Quartzite, Ferrier, 1813. 
Quartzite, Kemp, 2993. 
Quartzite, Rutley, 4724. 
Quartzite, Smyth, 5076. 
Quartzite, Van Hise and Bayley, 5696, 5704. 
Quartzite, Winchell and Grant, 6376. 
Quartzless porphyry (Orthophyre), Ferrier, 
1813. 
Quartzose hornblende porphyrite, Merrill, G. 
P., 3951. 
Residual rocks, Diller, 1507. 
Rhyolite, Bayley, 313. 
Rhyolite, Bergeat, 423. 
Rhyolite, Cross, 1187, 1188, 1190, 1191. 
Rhyolite, Diller, 1508. 
Rhyolite, Emmons, 1712. 
Rhyolite, Gregory, 2166. 
Rhyolite, Iddings, 2824, 2845. 
Rhyolite, Irving, 2868. 
Rhyolite, Kemp, 2993. 
Rhyolite, Lindgren, 3540. 
Rhyolite, Lord, 3572. 
Rhyolite, Merrill, G. P., 3951. 
Rhyolite, Ordonez, 4142, 4144. 
Rhyolite, Ransome, 4543. , 
Rhyolite, Smith, 5059, 5062. 
Rhyolite, Todd, 5407. 
Rhyolite, Tower and Smyth, 5445. 
Rhyolite, Turner, 5453, 5457, 5465, 5467. 
Rhyolite, Turner and Ransome, 5485. 
Rhyolite, Weed, 5940. 
Rhyolite, Weed and Pirsson, 5935. 
Rhyolite, Williams, 6155. 
Rhyolite breccia, Lord, 3573. 
Rhyolite gneiss, Weidman, 5970. 
Rhyolite-porphyry, Clements and Smyth, 
1017. 
Rhyolite-porphyry, Pirsson, 4408. 
Rhyolite-porphyry, Weed, 5946. 
Rhyolite-porphyry, Weed and Pirsson, 5942. 
Rhyolitic obsidian, Diller, 1507. 
Rhyolitic perlite, Diller, 1507. 
Rhyolitic pumice, Diller, 1507. 
Roscoelite, Turner, 5482. 
Sand, beach, Diller, 1507. 
Sand, dune, Diller, 1507. 
