BIOLOGY. 
Arachn. 13 
226. Werjbitzky, E. De Araneis regionis caucasise. Mem. Soc. Kiev 
xvii, 1902, pp. 461-503, 1 pi. (2 n. spp. Xysticus and Theridion). 
[Omitted in ZooLRec. 1902.] 
227. Westberg, P. Der Steg und die Begattung der Kreuzspinnen 
( Epeira ). KB. Ver. Riga, No. 4 (1901), p. 42. [Omitted in Zool. Rec. 
1901.] 
228. Wildeman (M. de). Sur les Acarophytes. C.R. Ac. Sci. 6 Juin, 
1904, pp. 1437-40. 
229. . Sur l’Acarophytisme chez les Monocotyledons. Ibid. 3 Oct. 
1904, pp. 551-553. 
230. Wilson, W. H. On the poison of spiders, with special reference to 
that of Chcetopelma olivaceum. Rec. Egypt. School Med. No. 1, 1901, 
pp. 141-150. 
231. . On the blood of Chcetopelma olivaceum, with special reference to 
the presence of Hsemocyanin. T. c. No. 1, 1901, pp. 151-155. 
232. . The physiological action of scorpion venom. J. Physiol, xxxi, 
pp. xlviii & xlix. 
233. . The immunity of certain desert mammals to scorpion venom. 
T. c. xxxi, pp. 1-lii. 
234. . On the venom of scorpions. Rec. Egypt. School Med. ii, 
pp. 7-41, pis. i-iii. 
235. Witt, Otto N. Die Spinnenseide von Madagascar. Prometheus 
Jahrg. 12, 1901, pp. 673-676, 3 figg. [Omitted 1901.] 
236. Wolcott, Robert H. The North American species of Limnesia. 
Tr. Amer. Micr. Soc. xxiv, pp. 139-160, pis. xii & xiii. 
II. BIOLOGY. 
1. Anatomy and Physiology. 
General morphology, anatomy and classification of Arachnoidea ; Lan- 
KESTER (100, 101). 
The muscle insertions in Arachnida; R. H. Stamm (198). 
On the anatomy and embryology of the nervous system of the Scorpion ; 
McClendon (120). 
On a new stridulating organ, Scorpion; R. I. Pocock (157). 
Morphology and anatomy of Pedipalpi ; C. Borner (35). 
Phagocytose in Thelyphonus ; C. Dawydoff (56). 
The heart and circulation in Spiders ; Franz (69). 
The sham-death reflex in Spiders ; T. Robertson (176). 
The function of the accessory chromosome in the Spiders; Louise 
R. Wallace (222). 
Structure and classification of Spiders, introductory sketch ; Thomson 
( 202 ). 
Stridulating organs in Theridiidse ; W. Kulczynski (96). 
On the lateral organs in the Solifugse ; R. Heymons (86). 
Morphology of Opiliones Cyphophthalmi, and Ricinuli ; H. J. Hansen 
& W. Sorensen (82). 
Observations on hearing and smell in Spiders ; II. Pritchett (160). 
Hsemocyanin in Arachnida; Kobert, p. xxiii, SB. Ges. Rostock 1903. 
1904. [VOL. XLI.] D 13 
