i'ks.i PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1904. 209 
Paleontology — Continued. 
Genera and species described — Continued. 
Venus ducatelli Conrad, Glenn, 5. 
mercenaria Linne, Glenn, 5. 
plena Conrad, Glenn, 5. 
rileyi Conrad, Glenn, 5. 
Vermetus graniferus (Say), Martin, 3. 
virginicus (Conrad), Martin, 3. 
Vertigo marki n. sp., Gulick, 1. 
numellata n. sp., Gulick, 1. 
Viburnum mattewanense n. sp., Berry, 1. 
Vinella Ulrich, Ulrich and Bassler, 1. 
? rrmltiradiata n. sp., Ulrich and Bassler, 
J. 
radialis Ulrich, Ulrich and Bassler, 1. 
radiciforniis (Vine), Ulrich and Bassler, 1. 
radiciformis conferta Ulrich, Ulrich and 
Bassler, 1. 
repens Uirich, Ulrich and Bassler, 1. 
Volvula iota (Conrad), Martin, 3. 
iota var. calverta n. var., Martin, 3. 
iota var. diminuta n. var., Martin, 3. 
iota var. marylandica n. var., Martin, 3. 
iota var. patuxentia n. var., Martin, 3. 
Wardia fertilis n. sp., White (D.), 5. 
Washakius Leidy, Wortman. 1. 
insignisLeidy, Wortman, 1. 
Whitella ? siluriana n. sp., Kindle and Bre- 
ger, 1. 
Whitfieldella nitida Hall, Kindle and Breger, 
1. 
YVilsonia saffordi Hall, Kindle and Breger, 1. 
Xenophoraconchyliophora (Born), Martin, 3. 
Xiphopeza E. Hitchcock, Lull, 1. 
triplex E. Hitchcock, Lull, 1. 
Yoldiabreweri n. sp., Ball, 1. 
emersonii n. sp., Ball, 1. 
lams (Say), Glenn, 5. 
palachei n. sp., Ball, 1. 
Zaphrentis albacornis n. sp., Greene, 2. 
alveolatus n. sp., Greene, 2. 
caliculns n. sp., Greene, 4. 
callosusn. sp., Greene, 4. 
cassedayi Milne Edwards, (ireene, 2. 
clinatus n. sp., Greene, 3. 
compressa Milne Edwards, Greene, 2. 
halliE. & H., Greene, 2. 
intortus n. sp., Greene, 2. 
invaginatus n. sp., Greene, 2. 
strigatus n. sp., Greene, 2. 
subcentralis n. sp., Greene, 3. 
Zarhachis flagellator Cope, Case, 4. 
tysonii Cope, Case, 4. 
Zatrachis, Broili, 1. 
Zeuglodon (Basilosaurns), Lucas, 2. 
Zizyphus elegan", Hoilick, Hollick, 2. 
Zonitoidcs bristoli n. sp., Gulick, 1. 
nama. 
Bleistocene foraminifera from Panama, Cush- 
rnan, 2. 
innsylvahia. 
Barite in Pennsylvania, Stose, 1. 
Barnesboro-Patton field, Burrows, 1. 
Basal conglomerate in Lehigh and North- 
ampton counties, Peck, 1. 
Buried valley of Wyoming, Corss, 1. 
Pennsylvania — Continued. 
Carboniferous of the Appalachian basin, 
Stevenson (J. J.), 1. 
Cement belt in Lehigh and Northampton 
counties, Peck, 3. 
Cement-rock deposits of the Lehigh district, 
Eckel, 4. 
Clays of Pennsylvania, Woolsey, 1. 
Contributions to mineralogy, Eyerman, 1. 
Coal Measures of central Pennsylvania, Fluck, 
1. 
Coal mining in the Wilmore basin. Butts, 1. 
Deposition of Appalachian Pottsville, White, 
(D.), 3. 
Elders Ridge coal field, Stone, 1. 
Extra-morainic pebbles in Pennsylvania, 
Woolsey, 2. 
Gisements de minerals de zinc, Demaret, 1. 
Glacial gravels of the Kittanning quadrangle, 
Leverett, 4. 
Hyner gas pool, Fuller (M. L.), 2. 
Indiana folio, Richardson, 1. 
Kittanning folio, Butts, 2. 
Latrobe folio, Campbell, 4. 
Lodel Creek and Skippack Creek, Lyman, 2. 
Meteoreisen-Studien, Cohen, 5. 
Meteoreisen von Millers Run bei Pittsburgh, 
Cohen, 3. 
Oil and gas fields of Greene County, Stone, 
2. 
Petroleum industry of Europe and America, 
Otsuka, 1. 
Physiographic features of the Susquehanna 
basin, Hollister, 1. 
Physiographic studies in southern Pennsyl- 
vania, Stose, 2. 
Upper Paleozoic rocks of Ohio and Pennsyl- 
vania, Girty, fi. 
Water resources of the Philadelphia district, 
Bascom, 1. 
Petrology. 
Alaska. 
Alaska-Tread well mine, Palache, 1. 
Geology about Chichagof Cove, Palache, 2. 
Stratigraphy and igneous rocks of Alaska,, 
Emerson (B. K.), 1. 
Tin deposits of the York region, Collier, 2. 
Arizona. 
Bisbee folio, Ransome, 4. 
Conglomerate dikes in southern Arizona, 
Campbell, 1. 
Geology and ore deposits of the Bisbee quad- 
rangle, Ransome, 1. 
Globe folio, Ransome, ::. 
( 'alifornia. 
Eclogites in California, Holvvay, 1. 
Geological section of the Coast Ranges, Os- 
mont, 1. 
Geomorphogeny of Kern basin, Lawson, 1. 
Miocene diabase of the Santa Cruz Mountains, 
Haehl and Arnold, 1. 
Orbicular gabbro at Dehesa, Lawson, 2. 
Orbicular gabbro of Dehesa, Kessler and 
Hamilton, 1. 
Roofing slate of igneous origin, Eckel, 6. 
San Luis folio, Fairbanks, 2. 
Bull. 271—05- 
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