12 Gen. Sub. 
I. GENERAL SUBJECTS. 
EkMann, G. [See Cleve, Ekmann & Petterson (107).] 
Elting, A. W. [See Bardeen & Elting (25).] 
171. *Engelbrethsen, P. Der Ursjirung des Lebens. Nat. Wochenschr. 
xvi, pp. 405-407. 
172. ^English, D. Photography for Naturalists. 8vo, London, pp. 132. 
Illustrated. 
173. Enriques, P. 11 fegato dei Molluschi e le sue futizioni. Mt. Stat. 
Neapel xx, pp. 281-407, 3 pis. 
174. -. Sulla ninfosi nelle mosche: della separazione della sostanza 
anisotropa delle fibre muscolari larvali e di un suo probabile derivato 
cristallizzabile. Anat. Anz. xx, pp. 207-219, 1 pi. 
175. Ewart, J. Cossar. The experimental study of variation. Pres. 
Address, Section D. Brit. Ass. Pep. Brit. Ass. lxxi, 1901, pp. 666- 
680, and Nature lxiv, pp. 482-488. 
176. -. Variation : Germinal and Environmental. Tr. Dublin Soc. 
vii, pp. 353-378. 
177. -. L’etude experimental de la variation. Rev. Scient. xvi, 
pp. 545-557. 
178. *Fenizia, C. Storia della evoluzione. 8vo, Milan, 400 pp. 
179. Fere, Ch. Note sur l’influence de l’injection prealable de solutions 
d’antipyrine dans l’albumen de l’ceuf, sur revolution de l’embryon de 
poulet. C.R. Soc. Biol, liii, pp. 755 & 756. 
180. Ferroniere, G. Etudes biologiques sur les zones supralittorales de 
la Loire-Inferieure. Bull. Soc. Ouest France (2nd Series) i, pp. 1-451, 
6 pis., 1 map, 1 fig. 
Influences of salinity, drought, illumination, etc. 
Fickert, C. [See Eimer (169) and Eimer & Fickert (170).] 
181. Field, G. W. Experiments upon the influence of the sexual cells 
upon the somatic cells. Biol. Bull. 1901, ii, pp. 346 & 347. 
182. -. Experiments on modifying the normal proportions of the 
sexes in the domestic fowl. T. c. pp. 360 & 361. 
183. Fielde, A. M. A study of an ant. P. Ac. Philad. liii, pp. 425-449. 
184. -. Further study of an Ant. T. c. pp. 521-544, 2 figg. 
185. Finn, F. Long-tailed Japanese Fowls [Letter]. Nature lxiv, pp. 
232 & 233, 551. 
Re variation and heredity. 
Cf. Cunningham (118). 
186. Fischel, A. Untersucliungen fiber vitale Farbung. Anat. Hefte 
xvi, pp. 415-530, 6 pis. 
187. Fischer, A. Ueber Protoplasma-structur. Antwort an O. Bfitsclili. 
Arch. Entwickmech. xiii, pp. 1-33. 
188. Fischer, E. Experimented Untersucliungen fiber die Vererbung 
erworbener Eigenschaften. Allg. Zeitsclir. Ent. vi, pp. 49-51 etc. 
Cf. Insecta, titles (458-460). 
Fischer, M. [See Loeb, Fischer & Neilson (387). 
189. Fiske, J. Reminiscences of Huxley. Smithson. Rep. 1900, pp. 713— 
728. 
