LIST OF WOOD CUTS. 



vn 



FIO. PAGE 



74 Saxicava rugosa, 165 



75 Section in Champlain clays, St. Albans, 166 



76 Section in Monkton Pond, . . 168 



77 Marl bed in Derby, . . . .171 



78 Section in Alburgh, .... 171 

 79, 80,81,82,83,84,85,86,87,88,89, Sketch- 

 es of fossil animalcules in Vermont, 172 



90, 91, 92, 93, 94, Sketches of fossil animal- 

 cules in Vermont, .... 173 



95 Section in Dover, . . . . 175 



96 Ideal section, 183 



97, 98, 99, Figures illustrating the frozen well, 193 



100 Section illustrating the frozen well, . 202 



101 Old river bed, Cavendish, . . .212 



102 Old river bed on Poultney Eiver, . 214 



102 (bis) Old river bed on Quechee Eiver, . 215 



103 Old river bed in Clarendon, . . 215 



104 Old river bed in Pittsford, . . .215 



105 Old river bed in Newfane, . . . 216 



106 Old river bed in Plymouth, . . .217 



107 Gorge at Mount Eolus, ... 219 



108 and 109, Valleys excavated at Whitehall 



and on Poultney Eiver, . . . 222 



110 and 110 (bis) Erosions in Sections I and II, 223 



111 to 160 Sketches of fossil fruits in Brandon, 229, 



230, 231 



161 Section in East Bennington, . . . 235 



161 (bis) Enlarged view of fossil fruit, . 239 



162, 163, 164, 165, 166 Fossil fruits, . . 239 



Ideal section of folded strata (without a 



number), 252 



167 Section of Snake Mountain, . . . 261 



168 Section through W. Haven and Whitehall, 265 



169 Section through W. Haven and Whitehall, 268 



170 Paleeophycus, 270 



171 Maclurea matutina, .... 271 



172 Section in Isle La Motte, ... 273 



173 and 174 Junction of Chazy limestone and 



Utica slate, 275 



175 Phytopsis tubulosum, . . . 277 



176 Ehynehonella altilis, . . . .277 



177 Maclurea magna, .... 278 



178 Section in Shoreham, .... 279 



179 Dip and strike of Trenton limestone, at 



Highgate Springs, .... 283 



180 Segregated veins, Highgate, . . . 284 



181 Section at Highgate Springs, in Trenton 



limestone, 284 



182 Plicated strata at Highgate Springs, in 



Trenton limestone, .... 285 



FIO. PAGE 



183 Section in Trenton limestone, Highgate, 285 



184 Section in Trenton limestone upon an 



island, 285 



185 Section in Trenton limestone, Panton, 285 



186 Chtetetes lycoperdon, . . . 289 



187 Columnaria alveolata, .... 290 



188 Escharopora recta, .... 290 



189 Stictopora ramosa, .... 290 



190 Stromatocerium rugosum, . . . 291 



191 Streptelasma corniculum, . . . 291 



192 Graptolithus, 291 



193 Lingula quadrata, . . . . .292 



194 Lingula elongata, .... 292 



195 Lingula obtusa, 292 



196 Crania filosa, 292 



197 Discina lamellosa, .... 293 



198 Trematis terminalis, .... 293 



199 Strophomena alternata, . . . 294 



200 Leptfena sericea, .... 294 



201 Orthis testudinaria, . . . .294 



202 Orthis pectinella, 295 



203 Orthis lynx, 295 



204 Tellinomya nasuta, .... 296 



205 Ambonychia undata, .... 296 



206 Bellerophon bilobatus, ... 297 



207 Trocholites ammonius, .... 297 



208 Orthoceras vertebrale, . . . 298 



209 Orthoceras anellum, . . . .298 



210 Orthoceras amplicameratum, . . 298 



211 Orthoceras strigatum, .... 298 



212 Orthoceras multicameratum, . . 299 



213 Calymene senaria, 300 



214 Ceraurus pleurexanthemus, . . 300 



215 Trinucleus concentricus, . . . 301 



216 Section in Panton, .... 301 



217 Section on Yew Island, .... 303 



218 Section at Kibbe's Point, South Hero, 303 



220 Eock Dunder, 305 



221 Section on Yew Island, . . . 305 



222 Utica slate, North Hero, ... 305 



223 Graptolithus pristis, . . . .307 



224 Graptolithus bicornis, . . . 308 



225 Grit in slate, Snake Mountain, . . 311 



226 Calcite veins in slate, . . . 311 



227 Quartz veins in slate, . . . . 312 



228 Section at Highgate Falls, . . 312 



229 Section at Highgate Falls, . . .313 



230 Lonerock Point, .... 313 



232 Section at Potter's Island, . . .314 



233 Section of Welden's Island, . . 316 



