14 Gen. Sub. 
GENERAL SUBJECTS. 
Fontannes, M. Sur certaines correlations entre les modifications 
qu’6prouvent des especos de genres differents, soumises aux memes 
influences. C.R. ciii, pp. 1022-1024. 
*Gauckler,, H. Einfluss holier Temperaturen auf dem Organismus von 
Iusekten. Die Insekten Welt. 3 Jahrg. ix. p. 49. 
*Geilhof, G. Beobachtungen fiber kfinstliche Abkfirzung des Puppen- 
stadiums bei europaischen Schmetterlingen. Die Insekten Welt. 
Jahrg. 3, pp. 27 & 28. 
Giard, A. De l’influence de certains parasites rhizocephales sur les 
caracteres sexuels extdrieurs de leur hcite. C.R. ciii, pp. 84-86. 
*Hall, A. E. Rapid Hatching of Lepidopterous Ova. Ent. xix, p. 257. 
Hermann, L. Influence of Electric Currents on Tadpoles. Arch. ges. 
Phys. xxxix, pp. 414-419 ; J. R. Micr. Soc. 87, pp. 51 & 52. 
In a vessel through which an electric current passes, tadpoles dispose 
themselves with head towards the anode, &c. 
Jourdain, S. [See Reprod.]. 
Weather in Relation to sex. 
Keller, R. Ueber die Austrocknungsfiihigkeit der Pflanzen. Kosmos, 
xix, pp. 56-59. 
Luciani, L. Sulla vita latente delle uova del Baca da seta. Bull. Soc. 
Ent. Ital. xviii, pp. 71 &.185 (c/. Verson, p. 160). 
*Marcacci, A. Influenza del movimeuto sullo sviluppo del? Uovo di 
Polio. Perugia : 8vo, 22 pp., 2 pis. 
Maupas, E. [See Reprod.]. 
Relation between nutrition and modes of reproduction in Infuso- 
rians. 
M’Aldowie, A. M. Development and decay of pigment layer on birds’ 
eggs. J. Anat. Phys. xx, pp. 225-237. 
Primarily for protection from solar rays, modified for concealment. 
Coloration varies in direct ratio to amount of light to which the eggs are 
exposed. • 
M^gnin, P. Nouvelles etudes anatomiques et physiologiques sur les 
Glyciphages (Acarina). C.R. ciii, pp. 1276-1278. 
In the inert perishing Acarid a conservative cyst is formed in the 
thoracic region, and from this, after long periods, a new form may, on 
the return of fit environment, be developed. 
Pennetier, G. Limite de la resistance vitale des anguillules de la nielle. 
T. c. pp. 284-286. 
Retain powers of revivification for fourteen years, but not longer. 
Plate, L. [See Reprod.]. 
Conjugation appears to be strikingly epidemic, possibly due to sudden 
change in external relations. 
