INDEX TO HUDSON RIVER BEDS NEAR ALBANY 



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Dendrograptus, 528'. 



tenuiramosus, 528*. 

 Devil's Den, Watervliet, 527^. 

 Dicellograptus, 498^ 

 intortus, 539^ 

 sextans, 539*. 

 Dicellograptus zones, 567'; lower, 

 511°; upper, 511^ 522?; homotaxial 

 with a part of tlie middle or lower 

 Trenton limestone, 551*; origin of 

 fauna, 563^ 

 Dicellograptus zone, lower, see also 



Normans kill shales. 

 Dicranograptus ramosus, 496^, 497', 



502S 502®, 540«, 541^ 

 Didymograptus, 498^ 543^ 

 serratulus, 497*, 541\ 

 tenuis, 540S 541». 

 Dionide, 510^, 562'. 

 Diplograptidae, 498'. 

 Diplograptus, 542^ 

 sp., 515\ 



amplexicaulis, 497^ 533^ 535S 

 585^ 537«, 537^, 539^ 557*, 561', 

 562^, 562P. 

 angustifolius, 541*, 544*. 

 foliaceus, 497«, 61&, 517», 517^ 

 520', 524*, 526', 534*, 535% 539^, 

 539*, 541% 544% 

 cf. foliaceus, 531% 

 marcidus, 524*. 

 mucronatus, 502*, 503% 

 pristis, 496% 497% 

 putillus, 498^, 514% 515% 516% 

 523*, 524*, 528% 528*, 530', 530», 

 531% 531*. 

 aft. putillus, 541% 

 quadrimucronatus, 497% 520% 



521% 531% 

 ruedemianni, 529% 

 spinulosus, 523% 528% 530*. 

 whitfieldi, 497% 541% 

 Discina conica, 501% 

 Dodge, W. W., cited, 583% 

 Dry creek, Watervliet, 517% 

 Dudley observatory, 529". 



Dwight, W. B., cited, 582% 582V 

 500«-2% 



Eccyliopterus, 545*, 561% 

 Echino-encrinites anatiformis, 501\ 



501% 501*. 

 Ells, R. W., cited, 583% 

 Emmons, Ebenezer, cited, 581% 492% 



528% 546% 566% 

 Endoceras proteiforme, 501% 502% 



523% 

 Eopolychaetus, 574% 



albaniensis, 529% 573«-74^; ex-^ 

 planation of plate, 586% 

 Escharopora angularis, 536% 

 recta, 501% 501% 



Figures, explanation of, 585^-88*. 



Fitzgerald's quarry. Port Schuyler,. 

 534^-35*. 



Ford, S. W., cited, 582% 503--4% 548% 



Fossils, discovery of stations with, 

 513*; of Hudson river group, 490*- 

 91% 493% 502% 504*-5*; Lorraine 

 beds, 493*, 496', 498% 513'-19% 521«; 

 Normans kill shales, 493*, 496% 

 496% 497', 498% 503*, 507% 538^-50' ; 

 Trenton limestone, 499^-502% 505% 

 521% 533«-38^; Utica slate, 496% 

 497% 498', 502% 503% 519«-33'; from 

 various stations, comparison, 551*- 

 '52*; new, description of, 569^-8P. 



Frankfort slates, 492*; correlated, 

 with Hudson river beds, 491% 

 492% 495% 507«. 



Freeh, Fritz, cited, 584% 489% 497% 

 515*, 523% 562% 563% 



French mills, exposure of Lorraine 

 beds, 518% 



Fucoides dentatus, 490% 

 lineatus, 490% 

 ramulosus, 490*. 

 serra, 490% 



Gerard, W. K., cited, 582% 



Glenmont, 543% 



Glyptocrinus decadactylus, 514'^ 



