Some recent advances in digital differentiators
p. 0045 | Roy, S. C. Dutta

Force field calculations from infrared intensities and zeta constants (for E species of CH₃Cl, CH3Br, CH3 I molecules)
p. 0052 | Dayanand, V.; Ravindranath, K.

Tracking a secret to lower blood pressure
p. 0054

On foliar helix of Cocos nucifera L. --Some geometrical considerations
p. 0055 | Joseph, Jose; Neelakandan, N.

Low power 915 MHz CW microwave radiation alters protein arrangement in Neurospora crassa : Comparison of effects on- heat damaged and undamaged cells
p. 0058 | Dutta, S. K.; Verma, Mukesh

Enzyme activity and isoenzyme patterns of Coccinia grandis in relation to sex expression
p. 0064 | Gulati, Anu

National Symposium on Current Trends in Physical Organic Chemistry
p. 0068

Extraction and spectrophotometric determination of platinum with cetyltrimethyl- ammonium bromide in presence of iodide
p. 0069 | Paria, P. K.; Thokdar, T. K.; Majumdar, S. K.

Azotobacter population as influenced by soil properties in some soils of North Karnataka
p. 0070 | Channal, H. T.; Alagawadi, A. R.; Bharamagoudar, T. D.; Udupa, S. G.; Patil, P. L.; Mannikeri, L. M.

Haemotological changes in Indian desert gerbils (Meriones hurrianae, Jerdon) fed with maize diets containing organic acids
p. 0071 | Banerjee, Ameeta; Urs, Yahoda L.; Majumdar, S. K.

Karyotype analysis in different varieties of Coriandrum sativum L.
p. 0073 | Das, Ananthbandhu; Mallick, Ranajit

Effect of saponins on ustilospore germination of smut
p. 0075 | Jaitly, N.; Wadhwam, K.; Banerji, R.; Misra, G.; Nigam, S. K.

Intraspecific nuclear DNA variation in Coleus forskohlii (Lamiaceae)
p. 0076 | Bahl, J. R.; Tyagi, B. R.

A fossil marine brown alga from the Gangapur Formation, Pranhita-Godavari Graben
p. 0078 | Rajanikanth, A.

Pollen grains: A possible source of fungal infestation in seeds of Cedrus deodara Loudon
p. 0080 | Saxena, Jyoti; Harsh, N. S. K.

Cytological studies in Aponogeton satarensis Raghavan, Kulkarni and Yadav
p. 0081 | Yadav, S. R.; Dixit, G. B.; Salunkhe, C. B.

Eudarluca caracis--A hyperparasitic fungus on Uredo sissoo
p. 0083 | Bhat, M. Narayana; Hegde, R. K.; Hiremath, P. C.

Antibacterial activity of Nitzschia obtusa
p. 0083 | Manivasaham, S.; Selvaraj, R.; Purushothaman, A.; Subramanian, A.

Young axis of Cyclanthodendron from the Deccan Intertrappean beds of India
p. 0084 | Verma, C. L.; Upadhyay, Uma

A case of polyhaploidy in Guayule: Parthenium argentatum Gray
p. 0085 | Narain, Prakash

Additional DNA homology between Agrobacterium and Rhizobium
p. 0087 | Kashyap, L. R.

Amanita porphyria--A new record for India
p. 0090 | Adhikari, R. S.; Bora, S. S.

Ammonia levels in the developing larval fat body of Spodoptera mauritia Boisduval
p. 0091 | Lazar, K. V.; Mohamed, U. V. K.

Occurrence of Fusarium oxysporum Schlecht and its pathogenicity on guava scale Chloropulvinaria psidii Maskell (Hemiptera: Coccidae)
p. 0092 | Gopalakrishnan, C.; Narayanan, K.

Cyclic nocturnal opening and abcission of Nyctanthes flowers with a note on visiting thrips species
p. 0093 | Raizada, Usha; Nangia, Anjali

Announcements
p. 0096

Book Reviews
p. 0097