TITLES. 
Echin . 19 
136a. [HERTWIG, R.J Lehrbnch dor Zoologie. 7 te Auflagc. 8vo, xii-f 
624 pp., 581 text-figg. Jena: Fischer. (May.) M. 11.50. 
[n, b, i, a, 1 : e, i, d. iv, f.] 
137. . Ueber das Problem der sexuellen Differenzierung. Verh. 
Deutsch. zool. Ges. 1905, pp. 186-214. [ii, f, iii.] 
HERTWIG, O. See Jaekel (145). 
138. HIND, W. A monograph of the British Carboniferous Lamelli- 
branchiata. Vol. ii, Part 2, pp. 35-124, pis. vii-xxi. London : 
Palaeontogr. Soc. (1903.) [hi, b, iv, d.j 
139. . Life-zones in the British Carboniferous rocks. Report of the 
Committee. Rep. Brit. Ass. 1904, pp. 226-237, 4 text-figg. (May.) 
[in, b, iv, d, o.] 
. See also Stobbs (308). 
140. HITZEL, E. Sur les fossiles de l’^tage Albien recueillis par M. A. 
Gu^bhard dans la legion d’Escragnolles (A.-M.). Bull. Soc. geol. 
France (4), ii, pp. 874-881. (Aug.) [ill, b, iii, b, 1 .] 
Also published in Trav. Lab. geol. Grenoble, vii, pp. 436-442. 
Review : by J. Lambert, Rev. paleozool. x, p. 62 (Jan. 1906). 
141. HODGSON, T. V. Preliminary report of the biological collections 
of the “Discovery.” Geogr. Journ. xxv, pp. 396-401. (April.) 
[in, a, vi.] 
142. H0RRING, R. Rapport om Fiskeriunders0gelserne under F8er0erne 
og Island i Sommeren 1901. Fiskeri-Beretn. for 1900-1901, pp. 181— 
209. (1902, reed, in London, Feb. 1906.) 
[ii, d, iii, a ; ix. iii, a, ii.] 
143. HUCKE, K. Gault in Bartin bei Degow (Hinterpommern). Zeitschr. 
Deutsch. geol. Ges. lvi, pp. 165-173, pi. xxiii, 2 text-figg. (1904, 
i.e. 1905, received in December.) [n, b, i, c, 5. iii, b, iii, b, I.] 
144. HUDSON, G. H. Contributions to the fauna of the Chazy Lime- 
stone on Valcour Island, Lake Champlain. Bull. N. York Mus. 
lxxx = Rep. N. York State Paleontologist, 1903, pp. 270-295, v pis. 
(Feb.) [ii, a, i. ill, b, iv, h. iv, f, g.] 
HUTTON, F. W. (129) Zool. Rec. 1904. Abstract : by J. Meisen- 
heimer, Zool. Zentrlbl. xii, pp. 700-702 (14 Nov. 1905). 
145. JAEKEL, O. Astrechinus pentagonus. Yerh. Deutsch. zool. Ges. 
xv, pp. 153-154. (Nov.) 
Discussion only, by H. E. Ziegler, R. Hertwig, & O. Hertwig. 
JANSSENS, F. A. (136) Zool. Rec. 1904. Abstract : by P., Rev. 
Scient. (5), iii, p. 250 (25 Feb* 1905). 
JIMENEZ DE CISNEROS, D. See Cisneros, D. Jimenez de. 
146. JOHNSON, C. W. Annotated list of the types of invertebrate 
Cretaceous fossils in the collection of the Academy of Natural 
Sciences, Philadelphia. P. Ac. Philad. lvii, pp. 4-28. (March.) 
[ii, e, i, c. ill, b, iii, b.] 
147. JOHNSTONE, J. Trawling observations and results. P. Liverp. 
biol. Soc. xix, pp. 216-241. [ill, a, ii.] 
148. JONKER, H. G. Beitrage zur Kenntnis der Sedimentargeschiebe 
in Niederland. Der “Hondsrug” in der Provinz Groningen. 
Einleitung — Cambrische und untersilurische Geschiebe. Mt. min.- 
geol. Inst. Groningen-,, i, pp. 45-172. (Dec.) [iii, b, iv, h.] 
