INDEX. 



609 



Page. 

 Lilhodemlrnn member, occurrence and ehiinioter of. 20-22, 



3K-40.42-4S 



Liverworts, .Iiiriissio, j.liites showing I'l- VI 



Locke. Ernest <;., fos.sii |.lants collected by 146,1.52 



Locust Point, Md.. fossil pliints from 573, .58;5-.'i89 



Loomis. F. B.. sections by -07 



Lorton station, Va., fos.sil plants from neiiv.. .ls.'>-l.si;, 5.s2-.')8y 

 Lower I'otomac. .s'cc Older Potomac formation. 



Lowry. Cal., fos.sil plants near 214-215, 221-223, 2."J4 



Lucas, F. A., mention of , 15,326 



Lycopodiai'cre 302-303 



Lycopodialcs 302-303 



Lycopodiolithcs V sp. Taylor 373 



Lyeopodites Brongniart 302-303 



? montimensis Font "OS- 

 MS, 313-314; PL LXXII,Figs.l.'),16 



M. 



MeCarty Creek. Cal. , fossils from 222 



McGee, \V J , on Potomac formation 365-366 



Potomac formation named by 362 



Macrof,cnio|)teris Schimper 82-83 



californiea Font M-S3, 141: PI. XIV, Figs. 1-4 



major (L. & H.) Schimp "S 



Maddren, A. G.. fossils donated by Hi' 



Map of Buck Jlountain region, Oreg PL V 



of (.'ow Creek Valley, Oreg PI- V 



of Little Colorado Valley region, Ariz PI. IV 



of Potomac terrane, Md Pl.LXXX 



of Shasta formation region, Cal PI. LXIV 



Marclmntiacc;e 53-.i4 



Marchantiales 53-54 



JIarehantites Brongniart 53-.i4 



erectus (Bean) Sew. ?.... .>3-o4. 7.i,141; PI. VI, Figs. 1,2 



Marls, variegated, buttes of 2.3-24, 42 



fossils of 23, 30, 33 



occnrrence and character of 23, 2.5-26, 39-40, 42-15 



Marnes Iri.s^es. correlation of 26 



Marratiacefe 87-88,239-242 



Marsh. 0. C, Atlantosaurus beds of 203 



Jurassic mammal quarries f)f 206 



on fossils from Muirkirk, Md 363 



on Potomac formation .576,579 



Marsileace:c 83-87,233-239 



Martin Brook, Canada, fossil plants from 277 



Maryland, cycads of, collections of 404-411 



eycads of, species of. descriptions of 416-474 



stratigrai)bic position and character of 411-116 



fossil localities in .527-574 



Potomac formation of, correlation of 580-699 



fossil plants from 474-478, 527- 



.574; Pls.LXXXI-CVII, CVIII-CX, CXII-CXIX 



region of. map showing PI. LXXX 



section of, diagram showing 598 



Maryland and Virginia, Potomac formation of, com- 

 parison of 574-575 



Mason, Victor, fossil plants collected by 382-383, 



486, 488, 490, 516 



Masons Neck. Va., excursion made to 385 



Matoniaceae 230-231 



Matonidium Schcnk 230-231 



Althausii (Dunk.) Ward 23(»- 



2:{1, 273; PL LXV, Figs. 22,23 



ampperti { Ett. ) Schenk 230 



polydacttjhivi (Giipp. ) Schenk 230 



Matties Peak, S. Dak., section at 323-324 



Meek, F. B., fossils collected by 361 



MON XLVIII — 05 39 



Meek and Hayden. on Potomac formation . 



Megiilosaurns 



Menispermaceai 



Menispermites Lesqnereux . 



Page, 

 .. 348 

 . . 205 

 . . 268 

 268, 498 



ealifornicus Font 268, 272; PL LXIX, Figs. 12-14 



reniformis Pn '■'" 



lenuinervis Font 491, 



496-497, 5.57, .567, .584; Pl.CI.X, Figs. 2, 3 



viffUnienttLs Font 482, 



491, 496--197, .504, .528, .534, .557, 567, .5.84, 593 



Mesozoic. Younger, investigation of 358-360 



Mesozoic deposits of .\riz<ma. Sn .\riz<jna, Older Meso- 

 zoic of. 



ilii-mkpia MantiMi (Brongn. i Ett 156 



Miunckahta, S. Dak., cycads from 206 



section near 323-324 



19 



41 



29-:» 



;i6 



17 



Moencopie BlufTs. Ariz., age of 



section through 



Moencopie formation, fossil plants from 



geological conditions of 



name of 



occurrence and character of 18-19, 22,38-10, 12-1.5 



section of 18 



Moencopie Wash, fossil twigs and stems from 28, 29 



stratigrai>liical conditions on 25, 28, .36, 39 



section on :jH-39 



Montana, northern, fossils from 177-178. 



224, 277-315; Pis. XLV, LXXI-LXXIII 



description of 177-178, 286-313 



list of 280-282.313 



Moqui Buttes, section through 10 



Morrison formation 578 



Mortar beds, occurrence of 26 



Morton and Vanuxem on Potomac formation 343-344 



Mortson, 0. C, fossils collected by 279, 282-283 



Mount Agassiz, Ariz., fossil wood reported from 36 



Mount Vernon, Va., fossil plants from .. 381,3.83,475.487-503 



Jlount Vernon beds, correlation of 381, 478, .598 



fossils of 381,' 383, 3.SS, 475, 477, 490-503, 508, 582-589 



occurrence of 381. 490, 574-.575 



Muddy Creek, Md., fossil plants from .572-573. 583-.5,S9 



Muirkirk. Md., fossils from 363, 370, 475.534-537, 583-589 



Musehelkalk, correlation of Leroux member and 2|> 



Musciku >Sieynbergiaim^ Dunk 264 



Myrica brookensis Font 510, 513, 584 



Nageiopsis Fontaine 171-173, 2.59-260, 311-312 



angustlfolia Font 219, 491, 516, 519, .528, 



.557,560-561, 567-568,684; PI. CXVII, Figs. 4,5 



lieterophylhi Font 21 9, 483, 620. .526 



54S, .5.57.561, 567-568,584; PL CXVII. Fig. 6 



latifolia Font. ? 260, 272,684; PL LXVIII, Fig. 13 



longifolia Font 167, 



171-174, 219-220, 272, 259-260, 311, 3l;?-315, 

 484,491,.510,528,.548,.557,.584; PL XLV. Figs. 1-5; 

 PL LXVIII, Figs. 9-12; PI. LXXIII, Fig. 9 



microphylla Fcmt 484,684 



montanensis Font 312, 



313-314,584; PL LXXIII. Fig. 10 



obtusifolia Font 484,584 



recurvata Font. V .548,552, 684; PL CXVI, Fig. 2 



zamioides Font 312, .510, 521. .526. 528, .545, 6.52, 586 



Nalhorst, A. G., on .\nomozamites ;i22 



i^n Cladophleliis 69 



on Dioonitcs 246 



on Mexican tonsils .57.s-.579 



