is
Fossils of th e Keokuk group. Aveo 8 grav. e t tex te de 47 pages. - Fossils
of th e St. Louis group. Avec 2 grav. e t tex te de 15 pages. - Fossils of tho
Chester group. Aveo 2 grav. e t tex te de 14 pages. - Fossils of th e coal measures.
Avec 9 grav. e t tex te de 60 pages.
Vol. VI. Geology and Palaeontology. 1875. A, H. Worthen: Coal Measures.
Geology of th e Counties of Clark; Crawford and Ja sp e r; Lawrence and
Eio h lan d ; Wabash and E dwa rd s; W h ite and Ham ilto n ; W ayne and Clay;
Cumberland, Coles and Douglas ; Williamson and F ran k lin . - G. C. Broadhead :
Geology of th e Counties of Bond; F a y e tte ; Montgomery; Christian;
Shelby; Effingham; Moultrie Macon and Plat. - E. T, Cox: Geology of
th e Counties of Gallatin; Saline; Livingston. Texte de 244 pages. -
Palaeontology. - 0 . St. John et A. B. Worthen: Descriptions of fossil flshes.
Aveo 22 pl. grav. e t tex te de 241 pages. — A. B. Worthen e t F. B. Meek:
Descriptions of invertebrates. Lower silu rian species. Avec 1 pl. grav. et
2 flg. e t tex te de 8 pages. — Upper silu rian species. Avec S pl. grav. et
tex te de 12 pages. — Devonian species. Avec 1 pl. grav. et 1 flg. dans le
te x te de 3 pages. — Lower carboniferous species. Avec 3 pl. grav. e t tex te
de 13 pages. — Coal measure species. Aveo 2 pl. grav. e t tex te de 8 pages.
Vol. VII. 1883. Geology. A. B. Worthen: Coal. - Building stone. - Coal oil.
Salt wells. — Notes on La Salle CW.
Palaeontology. 0. S*. John e t A. B. Worthen: Descriptions of fossil flshes. A
p a rtia l revision of th e Cochliodonts and Psammodonts; including notices of
miscellaneous mate ria l acquired from th e carboniferous formations of th e
United States. Avec 26 pl. e t tex te de 207 pages. — A. B. Worthen et
S. B. Miller: Description of fossil invertebrates. Palaeocrinoidea. — Mollusca. —
Brachiopoda. — Lamellibranchiatas. - A. B. Worthen Descriptions of some
new species of fossil shells from th e lower carboniferous limestones and coal
measures of Illinois. — A. H. Worthen et S. A. Miller: Descriptions of new
carboniferous Echinoderms. Asteroidea. Perisohoechinidae. Agelacrinoidea. —
Ch. Waehsnmth e t W. B. Barris; Description of fossil invertebrates. Palaeocrinoidea.
— Ch. W.achsninth: On a new gen u s and species of Blastoids,
w ith observations upon th e s tru c tu re of th e basal plates in Codaster and
P en trem ite s. Avec 5 pl. et 10 fig. dans le te x te de 110 pages.
Vol. VIII. 1890. Geology. A. B. Worthen: Drift deposits of Illinois. — Economic
geology: Coal. — N a tu ral gas and oil. — Artesian water.
Texte de 67 pages.
Palaeontology. A. B. Worthen: Description of fossil invertebrates. Zoantharia
Palaeocrinoidea. Brachiopoda. Lamellibranchiata. Pteropoda. Gasteropoda
Cephalopoda. Crustacea. — Ch. Wachsmnth e t F. Springer: New species of
Crinoids and Blastoids from tho Kinderhook group of th e lower carboniferous
rocks a t Le Grand, Iowa; and a new genus from th e Niagara group of western
Tennessee. — E. 0 . Ulrich: American paloeozoio Sponges. — Sponges of
th e Devonian and carboniferous systems. — E. 0 . Ulrich e t 0 . Everett: Descriptions
of lower Silurian Sponges. — E. 0. Ulrich: Palaeozoic Bryozoa.
Avec 78 pl. et 28 flg. dans le tex te de 728 pages.
Appendice.
N. W. Bliss e t Ch. A. White: The p rivate life and scientific work of Prof.
Amos H en ry Worthen.
Avec 1 portr. e t te x te de 37 pages.
J . L indahl: General index to Vol. I -V I I I . 1890.
Avec 1 c arte el tex te de 114 (3 8 -1 5 1 ) pages.
Geological and Natural History Survey of Minnesota.
Geology of Minnesota.
Vol. I. 1872 — 1882. (Of th e final Report). By N. B. Winchell assisted by
W. Upham. I n 4°.
Avec 43 pl., 1 carte e t 52 flg. dans le te x te de X I I I—697 pages.
Vol. II. 1882 — 1885. Avec 42 pl. e t 32 flg. dans le te x te de XX IV —695 pages.
Vol. I II. P a r t I. 1885-1892. Palaeontology. N. B. Winchell e t F. 0 . Uhlrich:
Historical sketch of inv estig a tio n of th e lower silu rian in th e upper Mississippi
Valley. — L. Lesqnerenx: Cretaceous fossil p lan ts from Minnesota. -
A. Woodward et B. W. Thomas: The microscopical fa u n a of th e cretaceous
in Minnesota, w ith ad d itio n s from Nebraska an d Illinois. — N. B. Winchell
e t Cli. Schnchert: Sponges, Graptolites und Corals from th e lower silu rian
in Minnesota. — E. 0 . Uhlrich: On lower silu rian Bryozoa of Minnesota. —
N. B. Winchell e t Ch. Schnchert: The lower s ilu rian Brachiopoda of Minnesota.
Avec 41 pl. e t 34 flg. dans le te x te de L IV—474—LV—LXXV pages.
Vol. I II. P a rt II. Palaeontology. 1892-1896. N. B. Winchell e t E. 0 . Ulrich:
The lower silu rian deposits of th e upper Mississippi province. A correlation
of th e s tra ta w ith those in th e Cincinnati. Tennessee, New York and Canad
ian provinces, and th e stra tig rap h ie an d geographic d istrib u tio n of th e
fossils. — E. 0 . Ulrich: The lower silu rian Lam ellib ran ch ia ta of Minnesota. —
The lower silu rian Ostracoda of Minnesota. — J. M. Clarke: The lower
Silurian Trilobites of Minnesota. — The lower silu rian Cephalopoda of Minnesota.
— E. 0 . Ulrich e t Ch. Schnchert: The lower s ilu rian Gasteropoda
of Minnesota.
Avec 48 pl. e t 183 fig. dans le te x te de LXXI (L X X X IH -C L IV ) 607
(475-1081) pages.
Vol. IV. Geology. 1896-1898. Avec 31 pl. ool., 48 photogr. e t 114 flg. dans le
te x te de X X —629 pages.
Vol. V. 1898-1900. S tru c tu ra l and pétrographie geology of th e Taconic and
Archean.
P a rt I. S tru c tu ra l geology by N. B. Winchell. — Pétrographie geology of th e
c rystalline rooks of Minnesota, by N. B. Winchell and U. S. Grant.
P a rt II. Petrograpliio geology and descriptions.
P a r t I II. Mineralogy and petrology of Minnesota, by N. B. Winchel. Appendix.
The s tru c tu re of th e Keweenawan.
Aveo 6 pl. e t 55 flg. dans le te x te de X X V II —1027 pages.
Vol. VI. 1900-1901. Geological a tla s w ith synoptical descriptions, by N. B.
Winchell.
Avec 8 8 pl. e t tex te explicatif.
Wisconsin geological and natural history Survey. MadisOn.
Voyez; pag. 90.
Bulletin, N“. III. Scientif. series, N°. 2. 1898.
S. Weidman: A contribution to th e geology of th e pre-cambrian igneous rooks
of th e F o x riv e r valley, Wisconsin.
Avec 5 pl., 1 carte e t 13 fig. dans le te x te de 63 pages.
Bulletin, N°. IV. Economic series, N°. 2. 1898.
E. R. Ruckley; On th e building and o rn am en ta l stones of Wisconsin.
Avec 6 8 pl., 1 carte ot 4 fig. dans le te x te de X X V I - 544 pages.
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