TITLES. 
Verm. 19 
254. [Morgan, T. H.] Further studies on the action of salt-solutions 
and of other agents on the eggs of Arbacia. Op. cit. x, 1900, pp. 489- 
524, 14 text-figg. [ Chcetopterus , pp. 516-521.] 
Summary by Bergh, Zool. Centrlbl. viii, pp, 222 & 223. 
254a. - . Regeneration in the egg, embryo and adult. [Planarians and 
Oligochoeta mentioned]. Amer. Natural. 1901, pp. 949-973. 
255. Moszkowski, M. Zur Richtungskorperbildung von Ascaris megalo- 
cephala. Arch. mikr. Anat. lix, pp. 388-401, 4 figg. 
256. Mrazek, A. Ueber das Verhalten der Langsnerven bei Abothrium 
rectangulum (Rud.). Centrbl. Bakter. xxix, pp. 569-571, 3 text-figg. 
Brief summary by Zschokke, Zool. Centrlbl. viii, p. 501. 
257. -. Ueber die Larve von Caryophyllceus mutabilis Rud. T. c., 
pp. 485-491, 3 figg. 
Summary by Zschokke, Zool. Centrlbl. viii, p. 501. 
258. ^Neumann, G. Sur une nouvelle espece de Spiroptere ( Spiroterct 
pectinifera ) du gesier de la poule. Rev. veterin. xxv. Toulouse, 1900, 
pp. 513-515, figg. 1 & 2. [Previously omitted.] 
Brief summary by Linstow, Zool. Centrlbl. viii, p. 95. 
259. Neveu-Lemaire, M. Description d’une nouvelle espkce de Lingua- 
tule. Bull. Mus. Paris vi, pp. Ill & 112. 
-. [See also Freyssinge & Neveu Lemaire (118).] 
260. Newton, E. T. On a remarkable volcanic vent of Tertiary Age in 
the Island of Arran, enclosing Mesozoic Fossiliferous rocks, ii. Palae¬ 
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p. 237.] 
260a. Newbigin, Marion J. Life by the seashore : Introduction to 
Natural History. London, Sonnenschein, 8vo, 352 pp., figg. Review 
in J. Quekett Club (2) viii, pp. 165 & 166, and in Nature lxiv, pp. 621 
& 622. 
261. Nickerson, Margaret, L. Sensory and glandular epidermal organs 
in Phascolosoma gouldii. J. Morphol. xvii, pp. 381-398, pis. xxxiv & 
xxxv. 
262. Nickerson, W. S. Note on the marginal sense-organs of Cotylogaster 
occidentalis. Science xiii, p. 378. 
263. Ninni, E. Catalogo della raccolta elmintologica del conte Dott. 
A. P. Ninni. Atti 1st. Veneto lx, Pt. 2, pp. 53-74. 
264. Nok, G. Propagazione delle filarie del sangue, esclusivamente per 
mezzo della puntura delle zanzare. ii. Rend. Acc. Lincei (5) ix, 
pp. 357-362, figg. 
For i, see Grassi & Nok (148). 
265. *-. Sul ciclo evolutivo della Xilaria bancrofti (Cobbold) e della 
Filaria immitis (Leidy). Ric. Labor, anat. Roma viii, fasc. 3 & 4, 
pp. 275-353, Tav. 19-21. [Probably a reprint.] 
266. -. Propagazione delle filarie del sangue unicamente per la puntura 
della zanzare. 3 a Nota preliminare. Rend. Acc. Lincei (5) x, pp. 317— 
319. 
Noe, G. [See also Grassi & Nok (147 & 148).] 
267. Nordenskiold, E. Einige Mittheilungen fiber die Gattung Wartelia 
Giard. Ofv. Finska Fork, xliii, pp. 222-232, pi. 
