In this issue
p. 0135

The Ramachandran map special issue Elkan Blout,R. Srinivasan. Instrumentation in India--K. R. Rao. God and/or science?
p. 0137 | Abraham, J. C. B.

Gupta's fossils may be Himalayan fakes, says GSI
p. 0138

Meeting reveals changing face of organic chemistry in India
p. 0138 | Nagarajan, K.; Chandrasekhar, J.

Large atoms in intersteller spaces
p. 0142 | Anantharamaiah, K. R.

Radio astromomy- A sky survey at 34. 5 MHz
p. 0144 | Srinivasan, G.

RIP tidings:Accelerating divergence of duplicated DNA sequences?
p. 0146 | Kasbekar, D. P.

An institution is reborn-the Indian Institute of Chemichal Thechnology
p. 0148 | Rao, A. V. Rama

Source correlation and its relevance in optical measurements
p. 0152 | Kandpal, H. C.; Vaishya, J. S.; Joshi, K. C.

Molecular assemblies of organooxotin compounds
p. 0158 | Chandrasekhar, V.; Muralidhara, M. G.

Rigid and flexible region in lysozyme and the invariant features in its hydration shell
p. 0165 | Madhusudan; Vijayan, M.

U-Au occurrence in Nogli Valley, shimla District, Himachal Pradesh
p. 0170 | Singh, R. V.; Sen, D. B.; Talra, R. K.; Gupta, R. K.; Singh, Rajendra

Fluorescence characteristics of 1,3-,1,4-,2,3- and 2,7-dihydroxynaphthalene radical cations
p. 0171 | Baharvanda, A. R.; Zaidi, Z. H.; Machwe, M. K.

Crystal structure of hexanediamine-glutamic acid complex
p. 0173 | Ramaswamy, S.; Murty, M. R. N.

Luperomorpha vittata Duvivier: A new association with Parthenium hysterophorus L. and other weeds
p. 0177 | Srikanth, J.; Joshi, Syamasundar; Viraktamath, C. A.

Effect of polyamine biosynthesis inhibitors on polyamine levels in bean seedlings
p. 0178 | Rajam, M. V.; Weinstein, L. H.; Galston, A. W.

bio-technology:Changing The Way Nature Works
p. 0181 | Arunachalam, S.

Annual Review of Genetics 1989
p. 0181 | Ramakrishnan, T.

Annual Review of Earth and Planetary Sciences 1990
p. 0182 | Radhakrishna, B. P.

First chronicler of chronobiology anobituary of Erwin Bunning by M. K. Chandrashekaran
p. 0184 | Chandrasekharan, M. K.

Uncanny confidence An obituary of P. K. Kelkar by S. Ranganathan
p. 0185 | Ranganathan, S.

Bardeen passes away
p. 0186

INSA awards
p. 0186

Environment and experimental toxicology
p. 0187

Regional sophisticated instrumentation centre
p. 0187

Physical research laboratory
p. 0188

Indira Gandhi institute of development research
p. 0189

First SERC school in plasma physics
p. 0190

Journal of Ecobiology
p. 0191

Journal of Ecotoxicology and Environmental monitoring
p. 0191

Special publications of the academy
p. 0192