692 



NEW YORK STATE MUSEUM 



Goniograptus thureaui, 576-92; 

 cited, 606 3 , 606 4 , 639 s , 640 s , 641 5 , 

 642 3 , 642 8 , 643 5 , 643 9 . 



St Croix invasion, 636 4 , 659 7 , 660 7 . 



St Lawrence channel, 636 6 -37 : . 



Salamanca conglomerate, 525 3 . 



Salamanca quadrangle, work on, 

 441 6 -42 3 . 



Salina beds, exposures, 518 9 -19 T . 



Salter, cited, 597 7 . 



Sandbergeroceras, 656 2 . 



Sandbergers, cited, 601 3 , 604 4 . 



Sapindopsis variabilis, 600 1 . 



Saporta, cited, 601 2 . 



Sargassum dechenianurn, 602 6 . 



Sarle, C. J., cited, 43P. 



Schiinper, cited, 599 4 , 601 2 . 



Schizambon, 608 2 . 



Schizobolus, 608 2 . 



Schizoerania, 607 s , 608 1 . 



Schizograptus, 581 2 , 584 6 . 



Schizopboria, 527 s . 

 impressa, 624 5 . 

 tulliensis, 669 s . 



Scbizotreta, 608 2 . 



Scbucbert, Charles, cited, 653 9 . 



& TJlrich, E. O., Paleozoic 



seas and barriers in eastern North 

 America, 633 a -63 9 . 



Scolithns canadensis, 534 7 , 545 4 . 

 linearis, 533 9 , 545 3 . 



Shinier, H. W., paleontologic work, 

 429 2 ; referred to, 442 8 . 



Siebenthal, cited, 653 9 . 



Siluric, in eastern North America, 

 647 8 -48 9 . 



Siluric and Cambric, line of divi- 

 sion, 530 2 . 



Simpson, George Bancroft, me- 

 morial tribute to, 457-60. 



Siphonophora, 590 3 , 591 1 . 



Skiddaw slates, 560 1 . 



Skunnemunk conglomerate, 654 s . 



Solms-Laubach, cited, 602 6 , 605 4 . 



Spathiocaris, 606-15, 610 3 . 

 emersoni, 610 s . 



Sphenopteris condrusorum, 602 5 . 



Spirifer arenosus, 653 3 , 653 7 . 



disjunctus, 526 4 , 526 7 , 624 5 , 630 3 , 

 630 9 , 672 3 . 



Spirifer mesastrialis, 624*. 



mucronatus, 654 7 . 



var. posterus, 624 4 . 



radiatus, 517 6 . 



unica, 653 7 . 

 Stafford limestone, 436 3 ; fauna, 669 1 . 

 Stenogramma interrupta, 598 4 . 

 Sternberg, cited, 599 2 . 

 Stones river, 662 1 . 

 Stones river formation, 639 1 . 

 Stratigraphic value of the Portage 

 sandstones, by D. D. Luther, 616- 

 29. 

 Stringocephalus burtini, 656 6 . 

 Stromatopora, 518 4 , 521 7 . 

 Strophalosia, 655 5 . 

 Stropheodonta cayuta, 624 5 . 



magniventra, 653 4 . 



vascularia, 653 4 . 

 Styliolina, 655 5 . 

 Stylonurus excelsior, 422 s . 



Taconic mountains, 646 5 , 661 5 . 

 Taeniocrada, 603 s , 604 4 . 



lesquereuxi, 603 s . 

 Temnograptus, 581 2 , 583 5 . 



cf. multiplex, 556 u . 

 Tentaculites, 655 s . 



Tetragraptus, 437 s , 438 4 , 556 s , 568 3 , 

 574 3 , 580 1 , 584 4 , 586 5 , 586 8 , 588 6 , 

 589^, 590 4 , 592 3 . 

 sp. nov. 554 6 , 556 4 . 

 alatus, 568 3 . 

 bigsbyi, 554 5 , 556 3 , 562 s , 563 5 , 



566 2 . 

 bryonoides, 554 5 , 560 3 , 562 s , 564 3 , 



568 s . 

 crucifer, 568 4 . 

 fruticosus, 554 s , 556 3 , 564 3 , 566 2 , 



567 3 , 589\ 589 7 . 

 aft. hicksii, 556 4 . 

 pendens, 566 B . 



quadribrachiatus, 556 4 , 556 9 , 

 559 7 , 562 8 , 563 7 , 564 3 , 566°, 

 568 3 , 568 9 . 

 serra, 554 5 , 556 3 , 563 7 , 564 3 , 566 1 , 



566 9 , 569 2 . 

 taraxacum, 589 2 , 589 7 . . 

 Tetragraptus zone, 554 2 -65 7 . 



