In this issue
p. 0331

Remembering Dr Shanti Swarup Bhatnagar
p. 0333 | Bhogle, Srinivas

Is it time to retire FORTRAN?
p. 0334 | Neelakantan, K.; Kumar, D. Krishna

Indian Science Congress-Need to make it a stock-taking affair
p. 0334 | Jain, N. C.

A modified alkaline lysis procedure for isolation of plasmid from Escherichia coli
p. 0335 | Basha, Shaik Yazdani; Palanivelu, P.

Paradoxes in the evolution of introns and genes
p. 0336 | Kumar, G. Naresh

Oil sardine and Indian mackerel: their fishery, problems and coastal oceanography
p. 0340 | Madhupratap, M.; Shetye, S. R.; Nair, K. N. V.; Nair, S. R. Sreekumaran

Active and adaptive optics for the new generation of large telescopes
p. 0349 | Love, Gordon; Saxena, A. K.

Appulses of faint stars by fragments of Comet Shoemaker-Levy 9
p. 0355 | Vasundhara, R.

Crystal and molecular structure of Azadirachtin-A
p. 0362 | Kabaleeswaran, V.; Rajan, S. S.; Govindachari, T. R.; Gopalakrishnan, Geetha

Modulation of constitutive, benz[a]anthracene- and phenobarbital-inducible cytochromes P450 activities in rat hepatoma H4IIEC3/G^- cells by piperine
p. 0365 | Singh, Jaswant; Reen, Rashmeet K.

Alternating field demagnetization of manganese ores and related rock types of Vizianagaram District, Andhra Pradesh
p. 0370 | Lakshmipatiraju, A.; Kedareshwarudu, U.

Identification of NRM carriers in chromite ores by alternating field and thermal demagnetization studies
p. 0373 | Murthy, I. V. Radhakrishna; Krishnamacharyulu, S. K. G.

Temporal changes in the chemical quality of groundwater in Ludhiana area, Punjab, India
p. 0375 | Singh, K. P.

Potential of wastelands for sequestering carbon by reforestation
p. 0378 | Gupta, Raj K.; Rao, D. L. N.

Mineralogical studies on calcareous algae
p. 0381 | Kerkar, Vijaya

Chemoheterotrophy in the mangrove environment
p. 0382 | Rao, C. S. V. Ramachandra; Krishnamurthy, K.

Importance of immigrant alatae on the population development of mustard aphid Lipaphis erysimi (Kaltenbach)
p. 0385 | Agarwala, B. K.; Bhattacharya, S.

Spectroscopy of Organic Compounds
p. 0387 | Nasipuri, D.

Annual Review of Biochemistry 1993
p. 0388 | Rao, D. N.

Indian Academy of Sciences elects new Fellows
p. 0390