The Influence of Thymine Nucleotide Depletion on Genetic Stability and Change in Eukaryotic Cells
p. 0001 | Haynes, R. H; Kunz, B. A

Announcement
p. 0011

New Hardware Circuits for the Implementation of Logical Relations in Information Processing--Part I and II
p. 0012 | Ramachandran, G. N

Magneto-Viscoelastic Interaction on One-Dimensional Wave Propagation
p. 0019 | Datta, B. K

Plant Growth-Promoting Rhizobacteria in Enhancing Plant Growth and Suppressing Plant Pathogens
p. 0022 | Sakthivel, N; Sivamani, E; Unnamalai, N.; Gnanamanickam, S. S

Announcement
p. 0025

Current Science--50 Years Ago
p. 0026

Science News
p. 0027

News
p. 0028

Potential Energy Curves of D States of SiF and SiCl
p. 0029 | Bhartiya, J. B; Behere, S. H

Temperature Dependence of the Viscosity of Organic Binary Liquid Mixtures
p. 0030 | Mathad, R. D

On the Nature of Local Strains During Self-Diffusion in Cubic Metals
p. 0031 | Bhat, B. V. Radhakrishna; Gogia, A. K; Bhat, T. Balakrishna

Nitrogen Chemisorption Suppression in the Strong Metal Support Interaction State of Co/TiO2 Catalyst
p. 0032 | Viswanathan, B; Gopalakrishnan, R

Lignocaine Hydrochloride as a Highly Selective Extractant for Spectro- Photometric Determination of Molybdenum with Thiocyanate
p. 0034 | Ramappa, P. G; Ramachandra, K. S

Allanite-Bearing Migmatites of the Archaean Schist Belt of Khammam, Andhra Pradesh
p. 0035 | Rao, T. Ramamohana; Rao, V. S. V. Prasada; Rao, N. Ranga; Raju, B. V. S. N.

Heavy Metal Contents in the Sediments of Narava Gedda Stream, Visakhapatnam, Andhra Pradesh India
p. 0037 | Kumar, Darshan

Spontaneous Secondary Shoot Development from the Root Cells of Brassica (Rapeseed-Mustard)
p. 0038 | Katiyar, R. K

Phytoalexin Accumulation in Diethyl Ether Treated Cotyledons of Cajanus Cajan
p. 0039 | Dahiya, J. S; Singh, Dalel

Studies on Nucleolus and Nucleolar Chromosomes in Angiosperms. XIII. Further Observations on Plant Chromosomes with Tertiary Constrictions
p. 0041 | Sharma, P. K; Langer, A; Koul, A. K

A Holotrichous Ciliate from the Coelom of Chaetognaths
p. 0042 | Santhakumari, V

Ichthyophthiriasis in Aquarium Fishes--A Note on the Pathogenicity and Life Cycle of the Parasite
p. 0042 | Mohan, C. V

Effects of a Fungicide Metalaxyl on the Root Meristem of Zea Maysl
p. 0043 | Somashekar, R. K.

Chromosomal Stability in Induced Tetraploids of Atylosia Scarabaeoides Benth
p. 0045 | Zadoo, S. N

Pythium Inflatum Matthews,-- A New Record for India
p. 0047 | Verma, B. L; Khulbe, R. D

Two Species of Achlya as Fish Parasites
p. 0048 | Sati, S. C

Neuronal Distribution in the Ganglia of the Cervico-Thoracic Segment of the Ventral Nerve Cord of the Larva of Waxmoth, Galleria Mellonella as Revealed by Cobalt Filling Technique
p. 0049 | Singh, H. H; Srivastava, K. P; Katiyar, R. L

On the Hyperglycemic Hormone of the Freshwater Crab, Barytelphusa Guerini Milne Edwards
p. 0051 | Gangotri, M. S; Venkatachari, S. A. T; Vasantha, N.

A Technique for Identification of the Instar of Mansonia Larvae
p. 0053 | Mary, A. Jose; Thomas, Cheriyan; Prasad, R. S

Book Reviews
p. 0056

Announcement
p. 0057