LIST OF PLATES. 



PART III. 



Azoic rocks, 

 Gneiss, 



Hornblende schist, 

 Mica schist, . 



PAOE 



452 

 453 



472 

 475 



Clay slate, 

 Quartz rock, 

 Talcose schist, . 

 Origin of gold, . 

 Steatite and serpentine, . 

 Saccharoid azoic limestone, 



PAGE 



489 

 498 

 503 

 530 

 533 

 555 



LIST OF PLATES 



AT END OP VOLUME II. 



I. Geological Map of Vermont. 

 II. Map of Surface Geology. (In front Vol.1.) 



III. Terraces on Connecticut River. 



IV. Terraces at Bellows Falls and Windsor, 



with a sketch of the former. 

 V. Terraces on Black River, the Winooski, 



the La Moille, and at Newbury. 

 VI. Terraces on the Passumpsic and Winooski 



Rivers. 

 VII. Terraces on Williams River, and at Brat- 



tleboro and Burlington. 

 VIII. Ancient Glacier Strite and the Geology of 



Rutland County and Isle La Motte. 

 IX. Claystones. 

 X. Claystones. 

 XI. Claystones. 



XII. Fig. 1, Endoceros proteiforme ; Figs. 2, 3 

 and 4, Graptolithus Milesi ; Fig. 5, 

 Isotelas gigas. 



XIII. Trilobites from Georgia : Fig. 1, Bar- 



randia Thompson! ; Fig. 2, Barrandia 

 Vermontana ; Fig. 3, Bathynotus Hol- 

 opyga; Fig. 4, Barrandia Vermontana; 

 Fig. 5, Barrandia Vermontana. 



XIV. Prof. Thompson's Map of Dikes. 



XV. Sections in Massachusetts and Vermont. 

 XVI. Sections v, vi, vn, vin, and ix. 

 XVII. Sections x, xa, XT, xn, and xm. 

 XVIII. Geological Map of Plymouth. 



XIX. Lake Memphremagog, from Prospect 



Hill, Newport. 



XX. Willoughby Lake. From the north. 

 XXI. The Chin and Summit House, Mans- 

 field Mountain. 

 XXII. Willoughby Lake. From the south. 



XXIII. Sutherland Falls, Rutland. 



XXIV. Pico, Killington and Shrewsbury 



Peaks. From Bald Mountain. 

 XXV. Cavendish Falls, on Black River. 

 XXVI. Lana Cascade, near Lake Dunmore. 

 XXVII. Clay Point and Camel's Hump, Col- 

 chester. 

 XXVIII. Deep Gorges on the Winooski, near 



Burlington. 



XXIX. Moss Glen Falls, Stowe. 

 XXX. Middlesex Narrows, on the Winooski 



River. 



XXXI. The Orvis Rocking Stone, Manchester. 

 XXXII. Manchester Village and Equinox 

 Mountain. 



XXXIII. View north, from the observatory of 



Equinox House, Manchester. 



XXXIV. Equinox Trout Pond, Manchester. 

 XXXV. View from Brattleboro Common, in- 

 cluding Vt. Lunatic Asylum. 



XXXVI. Sheldons & Slason's Marble Quarry, 



West Rutland. 



XXXVII. Ascutney Mountain. From Reading. 

 XXXVIII. Plymouth Ponds. From the south. 



