10 Echin. 
V. Echinoderma. 
[1920] 
, Sussmilch, C. A. (and otbeis). 
Sequence, glaciation and correlation of 
the Carboniferous Rocks of the Hunter 
River District, New South Wales. 
Sydney N.S-W. J. R. Soc. 53 1919 
(246-338) pis. xviii-xxxi. [27 B iv 
(c) (d).] 122 
Tennent, D. H. Evidence of the 
nature of nuclear activity. Washing- 
ton D.C. Proc. Acad. Sci. 6 1920 (217— 
221). [15 1 3.] 123 
Thomas, A. O. The fauna of the 
Independence Shale. Science New 
York 52 1920 (89). [27 B iv (f) ; 31 
F.] 124 
Thomas, A. 0. Nortonechinua, a 
Devonian sea urchin. Science Now 
York 52 1920 (89). [27 B iv (f) ; 31 
C.] 125 
Thomas, A. O. Echinoderms of the 
Iowa Devonian (Abstract). Bull, 
geol. Soc. America 31 1921 (21 1— 
212). [27 B iv (f).] 126 
Thuma, F. Ueber einige neue 
Fundstellen oberturoner Fossilien im 
bohmischen Mittelgebirge. Wien 
Verh. Geol. RchsAnst. 1916 1916 (281- 
288). [27 B iii (b) 1 ; 31 C.] 127 
Thust, K. A. Zur Anatomie und 
Histologie der Brisinga coronata G. O. 
Sars unter besonderer Beriicksichti- 
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Mitt. Zool. Stat. Neapel. Berlin 22 1916 
(368-432) pis. xii-xiv. [07 3 4 6 8 9 
12 ; 112 3; 23 10 ; 31 D.] 128 
Ulrich, E. O. The formations of the 
Chester series in Western Kentucky and 
their correlates elsewhere. Frankfort 
Kentucky K. Geol. Surv. 1917 1917 
(i-iv 1-272) pis. i-xi. [19 12 ; 27 
B iii (b) 2 ; 31 F H.] 129 
Vayssi6re, A. Sur la faune marine 
de la cdto occidentale du golfe de 
Marseille. Paris 0. R. Acad. Sci. 
170 1920 (914-916). [27 A ii.] 130 
Vayssidre, A. Etude sur la faune 
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Mus. Marseille 17 1919 1920 (93-110). 
[27 A ii.] 131 
Voeltzkow, A. Flora und Fauna der 
Comoren. Yoeltzkow’s Reise in 
Ostafrika. Stuttgart 3 1917(429-480). 
[27 A iii.] 132 
Wanner, J. Ueber armilose Krinoiden 
aus dem jiingeren Palaeozoikum. 
*s Gravenhage Verh. Geol. Mijnb. Gen. 
5 1920 (21-52). [27 B iv (c) (d) (e) ; 
31 F.] 133 
Welsch, J. Sur deux points parti- 
culars de la geologie des environs 
de Biarritz (Basses-Pryenees). C. R. S. 
Soc. Geol. France 1918 1918 (29-32). 
[27 B ii (f) ; 31 F.] 134 
Wilhelmi, H. Zur Analyse der Ent- 
wicklungskorrelationen bei der Skelet- 
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Zool. Jahrb. Jena 37 1920 (493-548) 
pis. vi-vii. (15 5 ; 31 B.] 135 
Wilhelmi, J. Teohnisoho Hilfs- 
verfahren zur Anfortigung von Zoich- 
nungon naturwisscnschaftlicher Ob- 
jekte. Berlin SitzBer. Ges. natf. 
Freunde 1916 1916 (153-159). [03 
6.] 136 
Woodward, H. B. Geology. Victoria 
County History, Buckingham. Lon- 
don Constable and Co. 1906 1920 (1- 
26). (27 B iii (c) 2.] 137 
Wright, J. On carboniferous Cri- 
noids from Fife : with notes on some 
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Glasgow Trans. Geol. Soc. 16 1917-18 
1920 (364-339) pis. xiii-xix. [07 5 ; 
23 1 7 ; 27 B iv (o) ; 31 F.] 138 
II.— SUBJECT INDEX. 
N.B . — The number in Clarendon Type 
quoted after the author's name, in 
the Subject and Systematic Indices , 
refers to “ Titles ,” where a fuller 
reference will be found,. 
GENERAL. 1003 
2. General Treatises and Mono- 
graphs. 
Davies, 43 ; Doderlein, 46 ; Lam- 
bert, 90 & 91. 
4. Pedagogy. 
Foerste, 52 & 55 ; Jackson, 80 ; 
Springer, 117. 
5. Museums. 
Arndt, 5 ; Foerste, 52 ; Springer, 117. 
