Solving and creating problems: Hepatitis B virus and the public health
p. 0445 | Blumberg, Baruch S.

Molar polarizations and permanent electric moment of some hexahydro-s-triazines
p. 0463 | Santhanalakshmi, J.

Erratum
p. 0465

Ontogeny of TCA cycle enzymes in human fetal heart
p. 0466 | Dasgupta, Jayati; Datta, Chhabi; Sengupta, Trishna; De, S.; Sengupta, D.

Announcements
p. 0468

Laterites and lignites of northwestern India and their relevance to the drift tectonics of the Indian plate
p. 0469 | Sychanthavong, S. P. H.; Patel, P. K.

Announcements
p. 0475

Properties of purified lactate dehydrogenase (LDH) from the breast muscles of different birds adapted to various habitats
p. 0476 | Prabhakaram, M.; Kaur, J.; Agarwal, S.; Agarwal, A.; Singh, S. M.; Singh, S. N.

News
p. 0479

Biflavones from the leaves of Fitzroya patagonica Hook F.
p. 0480 | Naqvi, S. W. I.; Parveen, N.; Parveen, M.; Khan, N. U.

Day-to-day variability of total electron content at low latitudes
p. 0481 | Alex, S.

Spectrophotometric platelet aggregation assay to measure single platelet disappearance: An evidence
p. 0483 | Sreedevi, C.; Thomas, Ancy; Jamaluddin, M.

A simple and economic method for long-term preservation of mushroom culture
p. 0485 | Sathe, A. V.; Dighe, Sangita

Induced resistance in rice to sheath blight disease
p. 0486 | Waheeta, A.; Sreenivasaprasad, S.; Chitralekha, R. S.; Manibhushanrao, K.

Baliospermum raziana--A new species of Euphorbiaceae from Coorg District, Karnataka
p. 0486 | Murthy, K. R. Keshava; Yoganarasimhan, S. N.; Nair, K. Vasudevan

Salt responses of enzymes from rice cultivars differing in salt tolerance
p. 0489 | Krishnamurthy, R.; Anbazhagan, M.; Bhagwat, K. A.

Effect of benlate on the germination of Azolla mexicana megasporocarps
p. 0490 | Kannaiyan, S.

Differential mutagenic sensitivity in Coriandmrn sativum Linn.
p. 0491 | Kothekar, V. S.

A new. record of spirurid nematode Parabronema skrjabini Rassowska, 1924 from Indian goats
p. 0492 | Yadav, S. C.; Sengar, O. P. S.; Chauhan, P. P. S.

A note on Chimera in Guava (Psidium guajava L. )
p. 0494 | Gowda, P. H. Ramanjini; Madalageri, B. B.; Kumar, N. Vijaya

Suppression of water hyacinth by the exotic insect Neochetina eichhorniae in Bangalore, India
p. 0494 | Jayanth, K. P.

Heart beat rate of intermediate forms produced after juvenoids and antiallatotropin treatments on diapausing larvae of Scirpophaga incertulas (Walker) (Lepidopetera: Pyralidae)
p. 0495 | Roychoudhury, Alakendra N.; Chakravorty, S.

Relative importance of temperature and photoperiod in the physiology of Indian garden lizard, Calotes versicolor
p. 0497 | Kar, Anand

Protection against Plasmodium berghei in rats by immunization with adult worm homogenate of Setaria cervi
p. 0499 | Kamath, Vijayalaxmi R.; Renapurkar, D. M.

Ecological consideration in the control of fish disease
p. 0500 | Shah, K. L.; Tyagi, B. C.

Announcements
p. 0501

Book Reviews
p. 0502

Announcements
p. 0505