Interdisciplinary activity--Essence of modern research
p. 0345 | Ramachandran, G. N.

Announcements
p. 0348

International Organization for Chemical Sciences in Development: A new experiment in International Cooperation
p. 0349 | Murthy, R. Vasudeva

News
p. 0351

Antarctica--The challenging Continent
p. 0352 | Qasim, S. Z.

Invariant imbedding approach to the length-scale dependent conductance of a one-dimensional disordered medium
p. 0358 | Kumar, N.

Evolution of garden nymphaeas
p. 0360 | Subrahmanyam, G. V; Khoshoo, T. N

Announcements
p. 0363

Current Science--50 years ago
p. 0364

Announcements
p. 0365

Dielectric relaxation at 9. 2 GHz in some aldehydes
p. 0366 | Deshpande, R. L; Deshpande, D. K; Rao, K. Suryanarayana

A new tannin from Acacia leucophloea Stem Bark
p. 0367 | Trivedi, R. K; Misra, K.

Studies on ring opening of coumarins
p. 0369 | Ramesh, D; Srinivasan, M.

Correlation of naturally occurring concentrations of free-ammonia in the caecum of rats with resistance to experimental Entamoeba histolytica infection
p. 0371 | Prasad, B. N. Krishna; Bansal, Indu; Nandi, R. C; Singh, S; Sarin, J. P. S

Isolation of Salmonella limete after two decades in India
p. 0374 | Devi, J. N. Sarvamangala; Shivananda, P. G; Sexena, S. N.; Mago, M. L; Murray, Chris

Stomatal peculiarities in Catharanthus roseus (Linn. ) G. Don (Apocynaceae)
p. 0374 | Sud,, K. C.

Occurrence of tension wood in vertical shoots of Polyalthia longifolia (Sonn. ) Thw.
p. 0375 | Patel, J. D; Reghu, C. P; Menon, A. R. S.

Do secondary substances inhibit mycorrhizal association?
p. 0377 | Kumar, V. Mohan; Mahadevan, A

Cytological studies in Chassalia ophioxybides (Wall. ) Craib. (Rubiaceae)
p. 0378 | Chennaveeraiah, M. S; Shivakumar, P. M

Direct differentiation of shoot buds from internode explants of Brassica campestris cv. 2 yellow sarson
p. 0379 | Singh, S; Chandra, N

A report of germination behaviour in dimorphic seeds of Indigofera hochsterteri Baker, in Indian arid zone
p. 0380 | Mishra, Rakesh K; Sen, David N.

Fungal infection of pearl millet seeds through colonisation of persistent antherlobes--A hitherto unrecorded aspect
p. 0381 | Raveesha, K. A; Subramanya, S; Shetty, H. S.

Nucleolar amplification during metaxylem differentiation in root meristem of Allium cepa var. viviparum
p. 0383 | Langer, Anima; Koul, A. K.

Occurrence of impietratura disease of Citrus in India
p. 0384 | Ahlawat, Y. S; Chenulu, V. V; Chakraborty, N. K; Vishwnath, S. M.

Crystal and molecular structure of (d-lysinato) (l-lysinato) dichloro copper (II) dihydridate
p. 0385 | Venkatasubramanian, K; Saha, N. N.

Seed germination studies with Cenchrus ciliaris L. II. isolation and characterisation of germination inhibitors from the spikelets
p. 0387 | Parihar, S. S; Patil, B. D.

Relationship between chromocentres and chromosomes in Cruciferae
p. 0388 | Dayal, N; Kumar, Sanjay

Effect of southern bean mosaic virus infection on the leaf protein concentrates in cowpea cultivars
p. 0390 | Singh, Awadhesh K; Singh, Anil K

Structure of style in Brassica campestris var. yellow sarson
p. 0391 | Bhatnagar, S. P; Kaur, Inderdeep

Studies on the oviposition of Callosobruchus maculatus
p. 0392 | Gupta, D. P; Bhaduri, Neeta

Sensitivities of the crab Scylla serrata (Forskal) to Naphthalene in different moulting stages
p. 0393 | Kulkarni, B. G; Masurekar, V. B

Diurnal rhythm of bimodal oxygen uptake in an airbreathing loach. Lepidocephalus thermalis (val. )
p. 0394 | Natarajan, G. M.

Preliminary studies on the premetamorphic growth of Bufo melanostictus (Schn. )
p. 0396 | Balakrishna, T. A; Shakuntala, Katre

Announcements
p. 0397

Science News
p. 0398

Announcements
p. 0401

Book Review
p. 0402