16 Gen. Sub . 
GENERAL SUBJECTS. 
Greenwood, M. Action of Nicotiu on Invertebrates. J. Physiol, xi, 
pp. 573-605. 
Haycraft, J. Berry, & Carlier, E. W. Note on the Transformation 
of ciliated into stratified squamous Epithelium as a result of the 
application of Friction. Q. J. Micr. Sci. xxx, pp. 519-222, 1 pi. 
Hertwig, 0. Experimeutelle Studien am tierischen Ei, vor, wahrend, 
und nach der Befruchtung. Jen. Z. Nat. xxiv, pp. 268-313, 3 pis. 
Ova of sea-urchins can survive a temperature of -2° or -3° C., but the 
fertilisation and segmentation are thereby much modified. 
Irvine, R., & Woodhead, G. Sims. Secretion of Carbonate of Lime 
by Animals. Part II. P. R. Soc. Edinb. xvi, pp. 324-354. 
Irvine, R. [See Murray, J.] 
Kochs, W. Ueber eine wichtige Veranderung der Korperbeschaffenheit, 
welche der Mensch und die Saugetiere der gemassigten Zonen im 
heissen Klima erleiden. Biol. Central bl. x, pp. 289-295. 
Increase of water in the tissues. 
. Kann die Kontinuitat der Lebensvorgange zeitweilig vollig unter- 
brochen werden ? T. c. pp. 673-686. 
Loeb, J. Weitere Untersuchungen fiber den Heliotropismus der Thiere 
und seine Uebereinstimmung mit dem Heliotropismus der Pflanzen. 
(Heliotropische Krfimmungen bei Thieren.) Arch. ges. Phys. xlvii, 
pp. 391-416, 1 pi., 2 figs. 
Serpulids, Hydroid Polypes, etc., bend to the light. In some cases 
(Sertularia, Eudendrium , Serpula ) the heliotropic curvature is attained 
only by growth ; but Spirographis spallanzanii , with a mobile tube, bends 
as some plants do apart from growth. 
0 . Der Heliotropismus der Thiere und seine Uebereinstimmung mit 
dem Heliotropismus der Pflanzen. Wfirzburg : 8vo, 118 pp. 
* . [See Groom, T. T.] 
Menard, Saint-Yves. L’Acclimation des Animaux et des Plantes. Rev. 
Sci. xlv, pp. 386-393. 
Murray, J., & Irvine, R. On Coral Reefs and other Carbonate of Lime 
Formations in Modern Seas. P. R. Soc. Edinb. xvii, pp. 79-108 ; 
Nat. xlii, pp. 162-166. 
Problems of shell-making, &c. 
Plateau, F. Les Myriopodes marins et la resistance des Arthropodes & 
Respiration a&iene k la Submersion. J. Anat. Phys. xxvi, pp. 236- 
269. 
Ringer, S. Concerning Experiments to test the Influence of Lime, 
Sodium, and Potassium Salts on the Development of Ova and Growth 
of Tadpoles. J. Physiol, xi, pp. 79-84. 
Those lime salts most efficacious in sustaining function of cardiac tissue 
are those best adapted to sustain life and growth in ova and tadpoles. 
