In this issue
p. 0135

S and T in India
p. 0137 | Singh, B. P.; Bhargava, Shekhar; Kumar, Arvind; Seth, P. K.

Wing tip vortices of cyclonic proportions
p. 0138 | Bera, Rajendra K.

Intermittency in tokamak edge turbulence
p. 0140 | Jha, R.

How to reap what you did not sow
p. 0141 | Ramakrishnan, T.

What's the use of physics?
p. 0142 | Smith, C. H. Llewellyn

Appropriate research: unnecessary injections in India
p. 0145 | Wyatt, H. V.; Mahadevan, S.

Remote sensing
p. 0146 | Verma, Pramod Kumar; Joshi, Ashok Kumar

On the one hand..
p. 0147 | Srinivasan, R.

Editor's note
p. 0148

Poredam urn burial--A Chalcolithic culture
p. 0148 | Rajendran, P.; Kshirsagar, Anupama

Occurrence of giant Stegodon tusks from Narmada Valley, India
p. 0149 | Lamba, Vikram J. S.

Trees: Their uses and biology
p. 0151 | Ram, H. Y. Mohan

Report on the brainstorming session in the area of tree biology
p. 0161 | Farooqui, Parveen

Profiles of scientific philosophy: Paradigms and serendipity
p. 0162 | Mitra, A. N.

Growth hormones and transgenic animals
p. 0169 | Palanivelu, P.; Dharmalingam, K.

Adequacy of thermosyphon cooling for an Indian PHWR
p. 0175 | Vijayan, P. K.; Raj, V. Venkat; Pilkhwal, D. S.; Mehta, S. K.

Pore size dependence on doping concentration in porous silicon
p. 0180 | Vadjikar, R. M.; Nandedkar, R. V.

Radioactive intensities of coastal sediments of Chilka lake, east coast of India
p. 0182 | Sahu, B. K.; Pradhan, B. B.; Panigrahy, P. K.

Characterization of apthovirus type Asia-1 isolates of Indian origin using monoclonal antibodies
p. 0184 | Prabhudas, K.; Butchaiah, G.; Ramachandran, Sakkubai P.; Rao, B. U.

Far-red light-ethylene interaction in seed germination of Caesulia axillaris Roxb.
p. 0187 | Amritphale, Dilip

The story of the turbojet origins
p. 0191 | Pai, B. R.

Fathers of the jet age receive the Charles Stark Draper Prize
p. 0195