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CRUSTACÉS NATANTIA 161

WarD (H.B.). — b) - On Nectonema agile Veil. (Bull. Mus. Comp. Zool. Harvard CONTE 135);

WATSON (J.). — On the re-development of lost limbs in the Insecta, (The Entomologist, t. XXIV, p. 108).

WeEBB (G.). — The larvae of the decapoda Macrura and Anomura of " Plymouth". (Journ. Mar. Biol. Assoc., t. XII, p. 385).

WEGE (W.). — Morphologische und experimentelle Studien an Asellus aquaticus. (Zool. Jahrbücher, p. 217).

WEISMANN (A.). — Das Keimplasma. Eine Theorie der Vererbung. lena. — Tatsachen und Ausgelungen in Bezug auf Regeneration. (Anal. Anzeiger., tu XV, p. 445).

WIGGLESWORTH (V. B.). — The physiologie of the cuticle and of ecdysis in ÆRhodinius proliscus. (Quart. Journ. Micr. Sc., p. 269).

WiLLiAMsSON (H. Ch.). — Regeneration in the Crab. (Ann. Report Fish Board Scotland, part. 13).

WiLson (Ed. B.). — Notes on the reversal asymmetry in the regeneration of the chelae in Alpheus heterochelis. (Biol. Bull. t. IV, p. 197).

WIREN (A.). — Über die Selbsverstimmelung bei Carcinus maenas. (Festschrift f. Lilljeborg Zool. Studier, p. 301).

Woop (F. D.) et Woop (H. E.). — Autotomy in decapod Crustacea. (Journ. Exper. Zool EX pp 1);

WRIGHT (F. S.). — Report on an investigation into the size, sex and condition of Crabs in England and Wales. (Rep. on Crabs of the interdepartmental Commitee, London, p.13):

YonGE (C. M.). — On the nature and permeability of chitine. I. The chitine lining the foregut of decapod Crustacea and the function of the tegumental glands. (Proc. Roy. Soc. London, t. DCCLXXII, p. 298).

ZALPETER (H.). — The isopotency of generally homologous parts of the body. Investigations upon the homeosis phenomen in the Crayfish. (Arch. f. Entw. Mech., t. CLX, p. 772).

ZæLENY (Ch.). — The relation of the degree of injury to the rate of regeneration. (Journ. Exp. Zool., t. Il, p. 347).

— Some experiments on the effect of age upon the rate of regeneration. (Journ. Exp. Zool., t. VII p. 56).

— The relation between degree of injury and regeneration. Additional observations and general discussion. (Journ. Exp. Zool., t. VII, p. 513). — The effect of successive removal upon the rate of regeneration. (Journ. Exp. Zool., t. VII, p. 477).

Zuezzer (M.). — Uber den Einfluss der Regeneration auf die Wachstumgeschwindigkeit von Asellus aquaticus L. (Arch. f. Entw. Mech, t. XXV, p. 361).

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