TITLES, BIOLOGY. 
Arachn. 11 
148. Wasmann, E. Uber einige myrmecophile Acarinen. I. Zool. Anz. 
xx, pp. 170-172. ii. Op. cit. pp. 346-350. 
Abstract in J. R. Micr. Soc. 1897, p. 283. 
149. Weed, C. M. Lifo histories of American Insects. Now York, 1897, 
8vo, pp. xii & 272. [Pp. 251-270, Arachnida.] 
150. Weydemann, — . Ueber ein Fall von Sarcoptes vulpis beim Menschen. 
Centrbl. Bakter. l t0 Abt. xxii, pp. 442-443. 
151. Zacharias, O. Biologische Beobachtungen an den Versuchsteichen 
des Schles. Fischereivereins zu Trachenberg. Forschber. Plon, v, 1897, 
pp. 10-28. 
II. BIOLOGY. 
1. General. 
Are the Arthropoda a Natural Group 1 ? Bernard (9); Carpenter (21); 
Claus (24); Hansen (43); Hutton (49); Jaworowski (55); Kingsley 
(61); Lankester (73); Laurie (74); Pocook (110); Sterling (135); 
Summary (2). 
Tho cribellum and calamistrum of Araclmida , p. 121, Becker, Arach. 
do Bolgiquo ii, in Ann. Mus. Bolgiquo xn. 
Epitholial secretions in fomalo reproductive apparatus of Arachnida ; 
Balriani (3). 
Lymph organs of Arachnida ; Cuisnot (27), p. 162. 
Relation of Arachnid head to Annelid prostomium ; Goodrich (42). 
Relationship of Arachnida to Insects; Acloque (1). 
Theory of appendages in the Arthropoda ; Jaworowski (56). 
Visual centres of Arthropods ; Patton (89). 
2. Scorpiones. 
Habit, of Scorpion, of carrying a flower; Newniiam (87). 
3. Pedipalpi . 
Discussion of the order Palpigradi and its affinities; Hansen & Soren- 
sen (44). 
Early development of Pedipalpi ; Pereyaslawzewa (92). Later de- 
velopment of Pedipalpi ; Pereyaslawzewa (93). 
4. Solifugce. 
General account of the Galeodidce ; Bernard (8). 
Habits of Solifugce ; Pocock (108), p. 267. 
5. Pseudoscorpiones. 6. Opiliones. 
Knab (62). 
7. Aranece. 
Araneida in nests of Ants; Janet (53). 
Capture and disarming of bees by I'homisus ; Fabre, Souvenirs entomo- 
logiques v, pp. 299-302. 
