[1901.] 



102 



TREITZ, P. Bevicht iiber die agro-geologische Special-Aufnahme im Jahre 1898. 



Jaliresb. Jc.-ung. geol. Anst. 1898, pp. 189-205. 1901. 

 TRENER, G. B. Bericht aus der Gegend von Borso. Yerh. k.-lc. geol. Beichsanst. 



1901, p. 252. 1901. 



2. Reisebericht aus der Cima d'Asta-Gruppe. Ibid. pp. 278-280. 1901. 



TRENKLER, H. Die Phonolitlie des Spitzberges bei Briix in Bohmen. Min. 



petr. Mitth. xx. pp. 128-177, figs. 1901. 

 TRIMMER, F. M., W. H. Dall, the late G. M. Dawson, and W. Ogilvie. The 



Yukon Territory. Pp. i-xiv, 1-138, figs., pis. i-xxii, & 1 geological map [1 inch 



=30 miles]. 8vo. London, 1898. 

 ■ . See Dall , W. H., Ac. 



TSCHERMAK, G. Bemerkungen iiber das Mischungsgesetz der Turmaline. 



Zeitschr.f. Kryst. xxxv. pp. 209-219. 1901. 

 TURNER, H. W. Perknite (Lime-Magnesia Rocks). Joum. Geol. Chicago, ix. 



pp. 507-511. 1901. 



TURNER, P. Coal-Mining at Depths exceeding 3000 Feet. [Increase of Under- 

 ground Temperature.] Trans. Inst. 31. IE. xxi. pp. 61-72. 1901. 



TUTKOVSKI, P. Cailloux faconnes (Dreikanter) dans la Partie sud du Polessie 

 Bull. Com. geol. Bussie, xix. pp. 363-406, pi. vi. 1900. 



2. Les Foraminiferes de la Maine a Spondglus de Kie.w. Bull. Soc. beige 



Geol. Brux. xii. Proc.-verb. pp. 9-21. 1901. 



TYRRELL, J. B. The Gold-bearing Alluvial Deposits of the Klondike District. 

 Trans. Inst. Mining Sf Metall. viii. pp. 217-226. 1900. 



* , & D. B. Dowling. Report on the East Shore of Lake Winnipeg and Adjacent 



Parts of Manitoba and Keewatin. Ann. Bep. Geol. Surv. Canada, n. s. xi. 

 (1898) no. G, pp. 1-98, pis. i-iii, & geological map no. 661 [1 inch ='8 miles]. 

 1901. [See also Dowling, D. B.] 



TZVYTAEV, M. K. See Lcewinson-Lessing, F. 



UDDEN, J. A. Geology of Louisa County. Ann. Bep. Geol. Surv. Iowa, xi. 



pp. 55-126, pi. iv & 2 geological maps [1 inch = 2 miles]. 1901. 



■ 2. Geology of Pottawattamie Co. Ibid. pp. 199-277, tig., pi. vi & 1 map. 



UGOLINI, R. Di uno Scheletro fossile di Foca trovato ad Orciano. Atti Soc. tosc. 



Sci. not. Proc.-verb. xii. pp. 147-148. 1901. 

 UHLIG, V. Die Geologie des Tatragebirges. II. Tektonik des Tatragebirges. 



Denkschr. k. Alcad. Wissensch. Wien, lxviii. pp. 1-88, figs., pis. i a & b, ii a & b, 



iii a & b, iv-vii, & 1 geological map [- 5 -^ 0 ]. 1901. 

 ULRICH, E. O. See Clark, W. B., &c. ' 



UPHAM, W. Pre-Glacial Erosion in the Course of the Niagara Gorge, and its 

 Relation to Estimates of post-Glacial Time. Am. Geol. xxviii. pp. 235-244. 

 1901. 



2. The Antiquity of the Races of Mankind. Ibid. pp. 250-254. 1901. 



3. The Toronto and Scarboro' Drift- Series. Ibid, pp. 306-316. 1901. 



■ . See Wixchell, N. EL, &c. 



, &c. Pleistocene Geology of Northern and Central Asia. Am. Geol, xxvii. 



pp. 311-312. 1901. 



USSHER, W. A. E. Excursion to the Start, Prawle, and Bolt District. Proc. 



Geol. Assoc. xvii. pp. 119-135, figs. [Geological map, 1 inch = 6 miles.] 1901. 

 2. The Culm-Measure Types of Great Britain. Trans. Inst. M. IS. xx. 



pp. 360-387, pi. xvii lump, 1 inch =40 miles^. 1901. 



. See Hunt, A. R. " 



USSING, N. V. See Flink, G. 



VACEK, M. Adolf von Pichlek. [Obit.] Verh. 7c.-Jc. geol. Beichsanst. 1900, 

 pp. 333-334. 1900. 



2. Zur Geologie der Radstadter Tauern. Ibid, 1901, pp. 191-213. • 1901. 



VAFFIER, A. Etude geologique et paleontologique du Carbonifere inferieur du 



Maconnais. Pp. 1-159, figs., pis. i-xii & 1 of sections. 8vo. Lyons, 1901. 

 VAN AUBEL, H. Note sur le Calcul des Porosites dans les divers Types de Dis- 



positifs sableux. Bull. Soc. beige Geol. Brux. xv. Proc.-verb. pp. 129-131. 



1901. 



VAN BOGAERT, C. Note sur la Resistance des Pierres naturelles aux Intem- 

 peries. Bull. Soc. beige Geol. Brux. xi. Proc.-verb. pp. 33-35. 1901. 



VAN DEN BROECK, E. Exposition speciale de Materiaux de Construction 

 d'Origine beige. Bull. Soc. beige Geol. Brux. xi. Proc.-verb. pp. 8-13. 

 1901. 



2. Reponse a M. Flamache. [Formation des Cavernes.] Ibid. pp. 90-93. 



1901. [See Flamache, A.] 

 3. Reponse a M. Versteaeten. [Hydrolosie des Roches.] Ibid. pp. 114- 



116. 1901. f See Veestraeten, T.J 



