In this issue
p. 0003

Visions and nightmares
p. 0005 | Balaram, P.

Bioinsecticides from plants
p. 0007 | Singh, Dwijendra

Are transgenic crops a threat to bio-diversity?
p. 0007 | Narayanan, K. K.

Comment on an editorial
p. 0008 | Reddy, Amulya

Presentation in seminars
p. 0009 | Gupta, Y. K.

Hypothyroidism in India
p. 0010 | Bhupal, V.

Hypothyroidism in India(Response)
p. 0010 | Gupta, B. B. P.

Lesser dog-faced fruit bat
p. 0010 | Krishnan, Riki

Lesser dog-faced fruit bat(Response)
p. 0010 | Varshney, R. K.

1999 TWAS awards in basic sciences
p. 0011

Structure of materials
p. 0012 | Rao, K. R.

Three dimensional structures at the heart of the central dogma of molecular biology: An end of millennium gift-pack from crystallographers
p. 0015 | Chatterji, Dipankar; Chander, Preethi

Random selections
p. 0018

The amoral scientists - The tragedy of Hiroshima
p. 0019 | Murthy, M. V. N.; Shankar, R.; Rao, Madan; Samuel, J.; Sitaram, A.

From the archives
p. 0022

The catalytic cycle of ATP synthesis by means of a torsional mechanism
p. 0023 | Nath, Sunil; Rohatgi, Hirdesh; Saha, Anjanabha

CUCG: A non-redundant codon usage database from complete genomes
p. 0028 | Gupta, S. K.; Ghosh, T. C.

Micropropagation of Gloriosa superba L. - an endangered species of Asia and Africa
p. 0030 | Sivakumar, G.; Krishnamurthy, K. V.

Herbal medicine
p. 0035 | Kamboj, V. P.

The underground flower, Veenu Kaul
p. 0039 | Kaul, Veenu; Koul, A. K.; Sharma, M. C.

The Chamoli earthquake, Garhwal Himalaya: Field observations and implications for seismic hazard
p. 0045 | Rajendran, Kusala; Rajendran, C. P.; Jain, Sudhir K.; Murty, C. V. R.; Arlekar, Jaswant N.

Cancer of the uterine cervix and human papillomavirus infection
p. 0052 | Das, B. C.; Gopalkrishna, V.; Hedau, Suresh; Katiyar, Sanjay

Tilings, coverings, clusters and quasicrystals
p. 0064 | Lord, E. A.; Ranganathan, S.; Kulkarni, U. D.

Pd and Pt nucleated nano Ni-particles: Evidence for heterogeneous nucleation and growth by transmission electron microscopy
p. 0073 | Lalla, N. P.; Hegde, M. S.; Dupont, L.; Tekaia-elhsissen, K.; Tarascon, J. -m.; Srivastava, O. N.

Surface electrical potential changes of saline tolerant and sensitive wheat varieties differ with sodium chloride treatment
p. 0076 | Hebbar, K. B.; Sinha, S. K.

Boron isotopic composition in early solar system solids
p. 0078 | Marhas, K. K.; Goswami, J. N.

Reduced receptor-mediated processing of model immune complexes by macrophages from patients with rheumatoid arthritis and its regulation by cytokines
p. 0082 | Arora, Meenakshi; Arora, Reetakshi; Kumar, A.; Das, Nibhriti; Srivastava, L. M.

Extraction and refinement of landuse/landcover information from satellite digital data using fast Fourier transformation in spatial frequency domain
p. 0087 | Saran, Sameer; Sharma, Subrat; Roy, P. S.

Some observations of the Chamoli earthquake-induced damage using ground and sate-llite data
p. 0091 | Sarkar, I.; Saraf, A. K.

New record of Mytilus viridis Linn., its density, growth and accumulation of heavy metals on Saurashtra coast, Arabian Sea
p. 0097 | Tewari, A.; Joshi, H. V.; Raghunathan, C.; Kumar, V. G. Sravan; Kotiwar, O. S.

X-Ray Spectroscopy and Allied Areas
p. 0102 | Hegde, M. S.

The Solvay Councils and the Birth of Modern Physics
p. 0102 | Shastry, B. Sriram

Annual Review of Pharmacology and Toxicology 1999
p. 0103 | Padmanaban, G.

Environmental Governance: The Global Challenge
p. 0104 | Chandran, M. D. Subash

A Neotropical Companion - An Introduction to the Animals, Plants and Ecosystems of the New World Tropics
p. 0105 | Daniels, R. J. Ranjit

Meetings/Symposia/Seminars
p. 0106

Current Science Association-Institutional Members
p. 0107

National Centre for Biological Sciencs
p. 0109

National Mineral Awards 1999
p. 0110

Department of Science and Technology
p. 0111