vi CONTENTS. 
31. Phototropy of inorganic salts. By Gopal Singh 
32. Photo-chemical catalysis. By A. K Sanyal 
33. South Indian Wattles. By C. Srinivasan 
34. A note on some tartrates. By K. P. Chabtseiae 
35. Some investigations on indigo nF opi, vat eenels 
dyeing. By N. A. Yajnik and D. R. Sar 
36. Laboratory experiments on the mani atlbtats of Peruse d 
cement from materials avaitaile in the United Provinces. 
By E. R. Watson, K. C. Mukerjee and N. C. Chatterjee 
37. Brominated Isocyamines. By K. L. Moudgill.. 
38. Some induced oxidations. By N. N. Mittra 
39. Tetramethyldiaminoacridine, By K. L. Moudgil 
40. of tet a ee — Sis A. C. Sirecar and 
41. ee say a iodine stecriticn of certain Titian vegetable 
oils. Raj 
- Yajnik and M. 
42. Eporiment. on the constitution of longitolne By J. L. 
Simonsen 
3: The Constient of some 5 Indian essential oils. By J. L. 
Sim 
44. Note on some new oils Sid fats. By M. Gopal Rui 
Section of Zoology. 
Presidential Address. By Dr. N. Annandale, F.A.S.B. 
Papers. 
1. Pearl production in the Indian nent areas, By J. 
Hornell 
2 mote on + Genta Bullinus sid Physa in the ve a: 
terranean “tee eo iu ig By N. Annan- 
dale 
‘kk ae 
3. On the Phylogeny of some Turbinellidae. a E. Vre- 
rg 
denbur 
4. Résumé of Recent Ficgress i in our Knowledge of the lealioe 
Wasps and By Cedric Dov 
5. The Development of the Ovary of Chea! By, v. Nath 
6. The Larva of Anopheles — Prashad, By M. O. 
Pindentinhes lye = 
7. A Further Note she: Contractile Anterior Pivevcib 
Appendages in Laacheli ine Larvae. By M. O. Tirunara- 
yana Iyengar 
8. Preliminary note on the Presence: of yeasts in some 
RR By M. J. Narasimhan 
9. Isopoda of the family pa Hee parasitic on ‘the cas 
Decapoda Natantia. By ag. 
10. On the occurrence and significance of a third ‘Saale 
vacuole in Pa ner ah Cinehibaial: By G. 8. Tha _ 
and 8. S. Choudhur 
il. ean fresh-water Ciliate Protea’ of Thins ~~ B. 
L. B 


