TITLES. 
Verm. 13 
186. Harper, E. H. Notes on regulation in Stylaria lacustris. Biol. 
Bull, vi, pp. 173-190, 16 figg. 
187. Hartlaub, C. Bericht liber eine zoologische Studienreise nach 
Frankreich, Grossbritannien und Norwegen. Wiss. Meeresuntersuch. 
Helgoland v, 2, pp. 97-106, 3 figg. 
188. Hayden, H. H. Memoirs of the Geological Survey of India. Mem. 
geol. Surv. India xxxvi, 1, pp. 1-129. 
189. Hein, W. Zur Epithelfrage der Trematoden. Zeitschr. wiss. Zool. 
lxxvii, pp. 546-585, pis. xxiii-xxv. 
190. . Beitrage zur Kenntnis von Amphilina foliacea. Op. cit. lxxvi, 
pp. 400-438, pis. xxv & xxvi. 
191. Hemingway, E. E. The brain and nerve cord of Placobdella pedicu- 
lata. Science xix, p. 218. 
192. Herdman, W. A. On a phosphorescence phenomenon in the Indian 
Ocean. Bep. Brit. Ass. 1903-1904, pp. 695 & 696. 
193. . Note on Pearl-formation in the Ceylon pearl oyster. T. c. 
p. 695. 
194. HIsrubel, M. A. Sur quelques points do la morphologie compardo 
des Priapulides. Bull. Soc. zool. France xxix, 5, pp. 126-129. 
195. . Sur les Priapulides des cotes occidentales de la Scandinavie. 
T. c. 5, pp. 100-109, 2 figg. 
196. Hind, W. On the homotaxial equivalents of the Lower Culm of 
North Devonshire. Geol. Mag. i, 8, pp. 397-403. 
197. Hinde, G. J. On the zone of Marsupites in the Chalk at Boddington, 
near Croydon, Surrey. Geol. Mag. i, 10, pp. 482-487. 
Lists of spp. 
198. Holm, G. Kinnekulles berggrund. Sveriges Geol. Unders. Afh. 
No. 172, 1901, pp. 1-118, 4 pis. 
199. . Palaeontologiska notiser. Op. cit. No. 179, 104 pp., 14 pis. 
200. Holmes, W. Murton. List of fossils collected. [Surrey.] P. 
Croydon Club 1903-1904, pp. 45 & 46. 
201. Holmgren, E. Zur Kenntnis der zylindrischen Epithelzellen. Arch, 
mikr. Anat. lxv, 2, pp. 280-297, pis. xviii & xix, 5 figg. 
202. Horst, B.. Wawo and palolo worms. Nature lxix, p. 582. 
203. IIubrecht, A. A. W. Die Abstammung der Anneliden und Chordaten 
und die Stellung der Ctenophoren und Plathelminthen im System. 
Jena. Zeitschr. xxxix, 1, pp. 151-176. 
204. . On the relationship of various invertebrate phyla. P. Ac. 
Amsterdam, April 23, 1904, pp. 839-846. 
205. Hudleston, W. H. On tlie origin of the marine (halolimnic) fauna 
of Lake Tanganyika. Geol. Mag. i, 7, pp. 337-382, 2 pis. 
206. Hurrell, H. E. Polyzoa. Tr. Norfolk Soc. vii, 5, p. 755. 
\Rotifera, p. 756.] 
207. Ikeda, 1. The Gephyrea of Japan. J. Coll. Tokyo xx, 4, 87 pp., 
4 pis. [n. spp.] 
208. Issel, B. Sui Botiferi endoparassiti degli Enchitreidi. Arch. Zool. 
exp. ii, 1, pi. 1-9, pi. 1. 
