TITLES. 
Echin. 21 
Also separately as Habilitationsschrift, in 75 pp., Leipzig. 
Abstracts: Rivista Biol, general, iii, p. 388 (May, 1901); by 
R. S. Bergh, Zool. Centrlbl. ix, pp. 113-116 (11 March, 1902). 
148. [HERBST, C.] Formative Reize in der tierischen Ontogenese. Ein 
Beitrag zum Verstandnis der tierischen Embryonalentwickelung, 8vo, 
viii+126 pp. Leipzig: Georgi. (Dec.) [n, F, v.] 
149. HERDMAN, W. A. Port Erin Biological Station. Guide to the 
Aquarium: Being a Short Account of some of the Common Marine 
Animals of the Neighbourhood. With Illustrations [by H. C. 
Chadwick]. 8vo, 44 pp. Liverpool Marine Biology Committee. 
(Dec.) Reprinted in Fifteenth Ann. Rep. Liverpool Mar. Biol. 
Comm., pp. 41-84. (Dec.) (Also in P. Liverpool Biol. Soc. xvi, 
1902.) [n, b, i, a, 1 .] 
150. HEROUARD, E. Note preliminaire sur les Holothuries rapportees 
par l’Expedition Antarctique Beige. Arch. Zool. exp. Notes 
(3) ix, pp. xxxix-xlviii. (June.) [ii, f, v, b; vii, b. ill, a, vi. iv, b.] 
Abstracts: by H. Ludwig, Zool. Centrlbl. ix, p. 250 (22 April, 
1902); J. R. Micr. Soc. 1901, p. 652 (Dec.). 
-. See Delage, Y. 
HESSE, E. (159) Zool. Rec. 1900. Abstracts: by A. Klautzsch, 
Naturwiss. Rundschau, xvi, pp. 37, 38 (1900); by H. Lotz, Geol. 
Centrbl. ii, p. 316 (15 May 1902); Ludwig (195). 
HESSE, R. See Beer (24). 
151. HILL, R. T. & VAUGHAN, T. W. Geology of the Edwards 
Plateau and Rio Grande Plain adjacent to Austin and San Antonio, 
Texas, with reference to the occurrence of underground waters. 
Rep. U. S. Geol. Surv. xviii, part 2, pp. 193-321, pis. xxi-lxiv, 
24 text-figg. (1898, received June 1899). [iii, b, iii, b, 2.] 
152. HIND, W. & HOWE, J. A. The Geological succession and Palae¬ 
ontology of the Beds between the Millstone Grit and the Limestone- 
Massif at Pendle Hill and their equivalents in certain other parts 
of Britain. Quart. J. Geol. Soc. lvii, pp. 347-404, pi. xiv, ii tables. 
(12 Aug.) [iii, b, iv, e.] 
153. HINTERLECHNER, Iv. Ueber Basaltgesteine aus Ostbohmen. 
Jahrb. geol. Reichsanst. Wien, 1, pp. 469-526, pi. xxi, 10 text-figg. 
(Feb.) [ii, d, iv. iii, b, iii, b, 1 .] 
HORNE, J. See Peach, Horne, & Macconochie (236). 
154. HORUSITZIvY, H. Die agro-geologischen Verhaltnisse des unteren 
Ipoly- und Garamtliales. Jahresber. Ungarn geol. Anstalt. 1898, 
pp. 206-230, 5 figg. (June.) [ill, b, ii, d.] 
HOUSSAY, F. (163) Zool. Rec, 1900. Review by L. Cuenot, Rev. 
gen. Sci. xii, pp. 889, 890 (15 Oct. 1901). 
HOYEY, E. O. See Whitfield & Hovey (321). 
HOWE, J. A. See Hind & Howe (152). 
HUENE, F. v. (166) Zool. Rec. 1900. Abstract by C. Sarasin, 
Eclog. geol. Helvet. vii, pp. 72, 73 (July, 1901). 
155. HUGI, E. Die Klippenregion von Giswyl. Denk. Schweiz. Ges 
xxxvi, 76 pp., vi pis. (1900.) [iii, b, iii, c, 2.] 
156. HUME, W. F. Geology of Eastern Sinai. Geol. Mag. (n. s.) dec. iv, 
vol. viii, pp. 200-204. (May.) [ill, B, ii, b; iii, b, 1 .] 
Prelim. Abstract of Hume (158). 
157. -. The Rift valleys and Geology of Eastern Sinai. 8vo, 50 pp., 
2 text-figg. London : Dulau, 2 sh. (Oct.) 
