TITLES. 
Gen. Sub. 23 
415. Lillie, F. E. On the smallest parts of Stentor capable of regene- 
ration : a contribution on the limits of divisibility of living matter. 
J. Morphol. xii, pp. 239-249. 
416. °Lillie, R. S. The ancestry of the Vertebrates. Univ. of 
Toronto Quarterly, ii, pp. 181-196. 
417. Linden, Grafin Maria von. Die Entwicklung der Skulptur und 
der Zeiclinung bei den Gehiiuseschnecken des Meeres. Zeitschr. wiss.. 
Zool. lxi, pp. 261-317, 1 pi. 
418. Lister, Sir Joseph. Presidential address, British Association, 
66th meeting, Liverpool, 1896. Rep. Brit. Ass. 1896, pp. 3-27. 
Bacteria, disease, phagocytosis, &c. 
419. Logy, W. A. The primary segmentation of the vertebrate head’. 
Biol. Lectures Wood’s IIoll, 1895, pp. 119-136, 8 figg. 
420. Loeb, J. Hat das Ceutralnervensystem einen Einfluss auf die 
Vorgange der Larven-metamorphose ? Arch. Entwickmech. iv, 
pp. 502-505. 
421. . Ueber den Einfluss des Lichtes auf die Organbildung bei 
Tieren. Arch. ges. Physiol. Ixiii, pp. 273-293. 
422. . Zur theorie des Galvanotropismus. in. Mittheilung. Ueber 
die polare Erregung der Hautdriisen von Ambly stoma durch den 
constanten Strom. Op. cit. lxv, pp. 308-316. 
423. Loeii, J., & Budgett, S. P. Zur theorie des Galvanotropismus. 
IV. Mittheilung. Ueber die Ausscheidung elektropositiver Jonen 
an der iiusseren Anodenflache protoplasmatischer Gebilde als Ursache 
der Abweichungen vom Pfliiger’schen Erregungsgesetz. T. c. pp. 
' 518-534. 
424. Loeii, J., & Gerry, W. E. Zur theorie des Galvanotropismus. 
ii. Mittheilung. Versuche an Wirbelthieren. T. c. pp. 41-47, 
2 figg. 
425. °Loew, O. The energy of living protoplasm. London : 8vo, 
120 pp. 
426. Lydekker, R. A geographical history of Mammals. Cambridge 
and New York : 8vo, xii & 400 pp., 82 figg., 1 map. 
427. • The Royal Natural History. Edited by R. Lydekker, with 
preface by P. L. Sclater. Vol. v. Reptiles, Amphibians, Fishes, 
xv & 584 pp., many illustrs. Vol. vi. Invertebrates, xvi & 580 pp., 
many illustrs. London and New York. 
428. MacBride, E. W. Note on the formation of the germinal layers 
in Amphioxus. P. Cambridge Soc. ix, pp. 150-153. 
429. . Note oil the continuity of mesenchyme cells in Echinid 
larvae. T. c. pp. 153 & 154. 
Cell-theory. 
430. . The value of the morphological method in zoology. Nature, 
liv, p. 606. 
431. . The present position of morphology in Zoological scienco. 
Rep. Brit. Ass. 1896, pp. 833-836. 
432. McIntosh, W. C. On contrasts in the marine fauna of Great 
Britain. Ann. Nat. Hist, xviii, pp. 400-415. 
433. . The Gatty Marine Laboratory, and the steps which led to 
its foundation in the University of St. Andrews. Dundee : 8vo, 
90 pp., 14 figg. 
