In this issue
p. 0004

Importance of environmental science: Medical geology
p. 0008 | Selvaraj, K.

Expertise crisis in insect taxonomy: Need for introspection
p. 0010 | Ananthakrishnan, T. N.

National vs international research
p. 0010 | Mishra, B. K.

Blind folly?
p. 0011 | Balakrishnan, V.

NeemAzal-F
p. 0011 | Senrayan, R.

A new deployable thin-film, ultralight mirror for future space telescopes and surveillance satellites
p. 0012

Brain Awareness Week 2000
p. 0012 | Ravindranath, Vijayalakshmi

Clonal propagation technology
p. 0015 | Reddy, G. M.

Chemical bond formation at atomic and molecular scale by STM
p. 0015 | Sur, Ujjal Kumar

Random selections
p. 0017

From the archives
p. 0018

The question of post-doctoral fellowships: A feasible case for apprenticeship in university teaching
p. 0019 | Sitaramam, V.

An indirect method for forecasting the annual food production of India
p. 0023 | Gopinathan, C. K.

Palynodebris accumulation characteristics of a sediment core from the eastern part of Lower Bengal Fan
p. 0024 | Ramesh, S.; Ramasamy, S.

Reliability of urohyal bone of silver carp, Hypophthalmichthys molitrix (Val. 1844) for age determination
p. 0027 | Johal, M. S.; Esmaeili, H. R.; Tandon, K. K.

Alzheimer's disease - A challenge in the new millennium
p. 0029 | Thakur, M. K.

Recent progress in cotton biotechnology and genetic engineering in China
p. 0037 | Zhang, Bao-hong; Liu, Fang; Yao, Chang-bing; Wang, Kun-bo

A note on the Kangra Ms = 7. 8 earthquake of 4 April 1905
p. 0045 | Ambraseys, Nicholas; Bilham, Roger

Particle image velocimetry
p. 0051 | Prasad, Ajay K.

Structural investigation of thin films and multilayers using X-ray scattering
p. 0061 | Vitta, Satish

Simulation of tropical cyclones using regional weather prediction models
p. 0070 | Patra, Prabir K.; Santhanam, M. S.; Potty, K. V. J.; Rao, P. L. S.; Tewari, M.

Inter-annual variabily of total ozone deduced from GOME and its relation to observed El Nino of 1997-1998
p. 0079 | Sarkar, Sudipta; Singh, Ramesh P.

Interaction of sanguinarine with A-form and protonated form of ribonucleic acid structures: Spectroscopic, viscometric and thermodynamic studies
p. 0082 | Das, S.; Banerjee, Anamika; Maiti, M.; Sen, Anjana

The effect of disturbance levels, forest types and associations on the regeneration of Taxus baccata: Lessons from the Central Himalaya
p. 0088 | Rikhari, Hem C.; Sharma, S.; Nadeem, M.; Palni, L. M. S.

In vitro antibiotic susceptibilities of Yersinia enterocolitica and Yersinia intermedia isolated from sewage effluents
p. 0090 | Sinha, Indrajit; Virdi, J. S.

Cell culture from fin explant of endangered golden mahseer, Tor putitora (Hamilton)
p. 0093 | Prasanna, Isswar; Lakra, W. S.; Ogale, S. N.; Bhonde, R. R.

Effect of synthetic zeolites on xylanase production from an alkalophilic Basillus sp.
p. 0095 | Balakrishnan, H.; Srinivasan, M. C.; Rele, M. V.; Chaudhari, K.; Chandwadkar, A. J.

Vestigial photoperiodic response in subarctic Myrmica ants
p. 0097 | Kipyatkov, Vladilen E.; Lopatina, Elena B.

A precision, low-cost vibrating sample magnetometer
p. 0099 | Niazi, A.; Poddar, P.; Rastogi, A. K.

Doubt and Certainty
p. 0110 | Pasupathy, J.

Aerosols: Generation and Role in Medicine, Industry and Environment
p. 0111 | Krishnaswami, S.

The Great Indian Elephant Book: An Anthology of Writing on Elephants in the Raj
p. 0113 | Santiapillai, Charles

The Khulgad Project - An Experiment in Sustainable Development
p. 0114 | Kar, Devashish

Chanchal Kumar Majumdar (1938-2000) - An obituary
p. 0115 | Dattagupta, Sushanta