INDEX. 



»i 1 5 



Pag.'. 



Tip Top. M<1.. fossils from .M5-Mf., oNVftsO 



Tliixiac'ii. Mex.. Lower I'oloinac fossils from near... 3-10, ftTK 

 Toiid. .\iirfli\is. fossil locality fliscoverccl by I" 



fossils collected by -IS, ,'i7 



ToddsCJiilcll. Oren., fossil plants from 4S,.')1-.V.! 



location of "1^ 



ToditcsWilliamsoni HrooKli I'* 



Trias, fossils from i:!-li"': I'ls. I-IH 



section tbrougb 10,42 



silicificd wood from K' 



vertebrate fossils from H-IS 



Trinity Center. Cal.. fossil plants from 117 



Trinity formation, age of 'M] 



flo'raoftlic :™-:M2 



Trout Creek, Mont., fossils from 2.s2 



Tuba, Ariz., fossil logs from :i" 



rocks near 2S 



Tuscaloosa beds, correlation <if 3-12 



fossils in ^'•'' 



occurrence of 391 



Tiimimnojthiini mfciiifisa L. A: H .Mt 



simiili.rh &H M 



Tyson, Philip T., cyeads collected by 3iil»-370, 40X-in 



on Jlarylanil paleontology 34S-3.')0 



TysoJiia marylaiKiiai Font 406,41(1 



Uhler. P. K., fossil plants collected by 557 



on Albipurean formation 3t>4, 375, 39S 



on Maryland cyeads 369-370 



on Maryland geology 3.57, 364, 372, 375 



Union Tininel, Baltimore, fossil plants from 570, 5.'<;?-.5K9 



Unkpapa f^audstone. correlation of 205 



cyoa'ls collected from 326 



V. 



Variegated marls, Arizona, .svc Marls, variegated. 

 Variegated sandstones, occurrence and character of.. 2s, 



3'J-40. 42, -14-45 



Vinegar Hill, Md.. fos.sil plants from 547-.554 



Virginia, fossil localities in 478-516 



lignites and fossil wood from 344 



Older Potomac formation of 474-59H 



correlation of .5S0-599 



fossil plants from 474-.51B; Pls.CVII-CXtl 



region of. map showing PI. r>XXX 



section of, diagram showing .59.s 



Virginia and Maryland, Older Potomac of, comparison 



of 574-.575 



Vitipbyllum niultilidum Font ... .548, .550, 553-554, ,5.58, 566- 



566, .569, bm, 691, 594, .598; PI. CXIX, Figs. 2-5 



parvifolium Font 658, .569, .588, .594 



\V. 



Ward's localities, location of 487^88, 490 



Washington, D. C, excavations at 3.54,374,381,382 



fossils from 374, 



379-382,516-519,883-589; Pis. LXXIV-LXXVI 



section at 386 



figure showing 387 



.See (ilso Reservoir; Sixteenth street. 



Wealdcn formation, age of 350, 676-577 



correlation of 368 



definition of 371 



occurrence of 357 



of Hanover, fossil plants from 161 



Page. 



Weed, Walter II., fossil plants found by 279,282 



Weldon, N. v.. rocks at 391 



Wells, H. F., fossils cnllccte<l by 20:i,;n5 



West Virginia, fossil plants fr<nii 169 



Whipple, Lieutenant, creeks named by 20,22 



exploration by 31 



fossil wood collected by 31 



While. C. .\., on Potonmc formation 374 



on Texas geology 329 



White. Havid, fossil Jilanls collected by 376,482-183,4.83 



White House Hlulf, Va., fossil plants from 381, 



383, ;iH5, 4S7, .5S2-.5,89 



WiddritKjtoiiitts liuidrri (Kit. ) Scliimp 264 



Wieland, George R., micros.'opic; study of 316 



section by, on foliage of ('ycadella 198-203 



on ,Iurassic cyeads of Hhu'k Hills 204-207 



on stratigraphy and iialeontology of Black 



Hills rim 317-326 



Wilcox's raiu'h, California, ffissil from 215 



Williams, Ariz., fossil wood ftunid near 3.5-26 



Williams, R. S., fossils discovered by 277-279 



Williamsouia Carruthers 11.8-120; PI. XXIX 



VBibbin.si Ward .548, 554, .588, .595; Pl.CXV.Fig.il 



■.'gallinaccaWard 484,485,588; PI. CVIl, Fig.4 



gigas (L.iH.) Carr 136,13.8.198-199,201-203 



gigas (Willn.i Carr 119 



oregonensis Font.... US-llH, i;)S,140; PI. XXIX, Fig.6 



?sp. Font 11)1,110: No. 1,1'l.XXlX, Fig. 7 



?sp. Font., No. 2 ia.li.i-} llH-120, 141; 



Pl.XXIX. Figs. 8-12 



Willoughby, W. F., aid of 382 



Winslow, Ariz., section through 40-41 



Wolf Creek, Tex., fossils at 338 



Woman's College, cycad collections of 404-408; 



Pis. LXXXVII-LXXXIX 

 Wood, petrified or silicified. Sre Petrified wood. 



Woodbridge. Va., fossil plants from 485,582-.589 



Woodruff Butte. Ariz., section through 4'2-13 



Woodward, Karl, silicified trunk found by 382 



Woodworth, .1. B., report of 137 



Woolfe, Henry D.. fossil plants collected by 145, 



153,161,164,167,168 



Wyoming, Jura.ssic cyeads from, collections (,)f 179- 



182,'2O3--204,273 



Jurassic cyeads from, descriptions of 182-203 



geology and paleontology of 204-208 



section in 20.5-206 



Y. 



Yorkshire, comparLson of fo.ssil plants from Oregon 



and 143-144 



Younger Me.sozoic, investigation into 358-359 



Yuceites Schimper & Mougeot 135-136 



hettangensis iijap.? 1S5- 136, 



141; PI. XXXVII, Figs. 1,2 



Z. 



Zamia 207, 247, .549 



angustifolia .lacq 201 



gigas L. & U i:)6 



lanceolata L. & n 110 



lontjifnlia Brongn 113 



taxinaL, & H 98 



Washingtonialia Ward... 491 , 5015. 588: PI. CXI. Figs. 1,2 



Zamiophyllum Nathorst 244, '249 



Btichianum (Ett.) Nath 249 



