Cretaceous-Tertiary boundary events: Mass extinctions, iridium enrichment and Deccan volcanism
p. 0513 | Sahni, Ashok

Science News
p. 0519

Surface of microfilariae and impact of chemical alterations in vitro
p. 0520 | Srivastava, V. M. L.; Masood, K.; Guru, P. Y.; Sharma, Satyavan; Chatterjee, R. K.

News
p. 0523

Activation of serum complement by organochlorine insecticides, DDT and endosulphan
p. 0524 | Das, Nibhriti; Srivastava, Nalini; Srivastava, L. M.

Announcement
p. 0526

A chemotaxonomic assessment of the status of some infraspecific taxa of Ipomoea Linn
p. 0527 | Nair, Geetha G.; Daniel, M.; Sabnis, S. D.

News
p. 0529

Sustained release formulations of Bacillus sphaericus for the control of mosquito larvae of Culex fatigans
p. 0530 | Amonkar, S. V.; Vijayalakshmi, N.; Rao, A. S.; Gopinathan, C.

Rapid procedure for production of anti-Azospirillum serum
p. 0533 | Annapurna, K.; Gaur, Y. D.

A Series representation for Ramanujan's integral formula
p. 0536 | Thandapani, E.; Balachandran, K.; Balasubramanian, G.

An improved procedure for the acylation of phenols using boron trifluoride-etherate
p. 0537 | Mohanty, Smita

Anti-inflammatory activity of Jussieua repens Linn
p. 0539 | Thamaraichelvan, A.; Baburaj, S.

A simple tubidometric assay for concanavalin
p. 0539 | Karma, A.; Gupta, M. N.

Effect of anions in cu(II)-diamine complexes on catalytic hydrolysis of DFP
p. 0542 | Marjit, D. N.; Sharma, U. S.; Jaiswal, D. K.

Mid-Holocene sediments of Warna basin, Sangli district, Maharashtra (India)
p. 0543 | Tandale, T. D.

Felsic volcanics from the Khetric Copper Belt, Rajasthan
p. 0544 | Gathania, R. C.; Golani, P. R.

A possible common mode of origin of human XX hermaphrodites 'Y-negavie' XX males and XY females with normal Y chromosomes
p. 0547 | Chandra, H. Sharat

Altered nuclease and protease activity in cyanophage LPP-1 infected cyanobacteria Phormidium Uncinatum and Plectonema Boryanum
p. 0548 | Bisen, P. S.; Audholia, Surabhi; Gupta, A.; Tiwari, B. N.

Studies on the stem exudate of Azadirachta indica LINN.
p. 0550 | Ali, M.; Qadry, J. S.

Loss of toxigenicity of Aspergillus flavus strains during subculturing--A Genetic interpretation
p. 0551 | Bilbrami, K. S.; Sinha, S. P.; Jeswal, Punam

Powdery mildew of Momordica cochinchinensis
p. 0552 | Singh, H. B.; Vawra, L. C.

Sex determination in the larvae and pupae of soybean leaf miner, Aproaerema modicella Deventer
p. 0553 | Singh, O. P.; Nema, K. K.

Polyploidy, nuclear DNA and hecogenin in four species of Agave
p. 0554 | Banerjee, Suchitra; Sharma, A. K.

Non-vestured pits of Delonix elata Gamble
p. 0556 | Ranjani, K.; Krishnamurthy, K. V.

Effect of storage on pollen germination and pollen tube growth
p. 0557 | Kumar, P. B. A. Nanda; Chaudhury, Rekha; Shivanna, K. R.

Effect of alcohol and chemical effluents on seed germination and seedling growth of black gram
p. 0559 | Rajaram, N.; Manoharan, M.; Janardhanan, K.

Russula crustosa Peck--An addition to Indian edible mushrooms
p. 0560 | Bhati, R. P.; Lakhnapal, T. N.

Abnormality in olfactory organ and jaws of the exotic carp, Cyprinus carpio caommunis (LINN.)
p. 0561 | Jaiswal, Sunil Kumar; Komanduri, Radha; Waghray, Sarala

Gill surface area of a giant size riverine specimen of major carp, Catla catla (Ham)
p. 0563 | Kunwar, G. K.; Munshi, J. S. Datta