The geometrics of tetracoordinate carbon
p. 1049 | Jemmis, Eluvathingal D.

Announcements
p. 1053

Reaction mechanisms in (n. γ) reactions
p. 1054 | Agrawal, H. M.; Sehgal, M. L.

Current Science-50 years ago
p. 1056

Announcements
p. 1056

Small diameter vascular graft: Development and modification
p. 1057 | Sharma, Chandra P.

Bioassay of Herbicidal activity with pigment content and CO2 Fixation
p. 1058 | Dubey, P. S.

Tapetal dimorphism in two species of Premna L.
p. 1059 | Ramana, R. Venkata; Rao, P. S. Prakash

Formation of negatively-geotropic roots in shoot Aped cultures of Carthamus Tinctorius Linn.
p. 1061 | Goyal, S. C.; Pillai, A.

Mutagenic effects of Hydroxylamine on tomatillo (Physalis Ixocarpa Brot,)
p. 1062 | Mahana, S. K.; Saini, G. G.; Gupta, Rashmi

Cytomixis and Meiotic abnormalities in Jasminium Spp.
p. 1064 | George, K.; Geethamma, S.

A modified Zadrazils method fr the cultivation of oyster mushroom
p. 1066 | Sathe, A. V.; Nagarkar, M. B.

Male sterility in Indian Turnip Rape
p. 1067 | Katiyar, R. K.

Acute toxicity of Sterigmatocystin in Chicks
p. 1068 | Salam, S. B. A.; Shanmugasundaram, E. R. B.

Phosphate mediated biochemical changes in Neurospora crassa
p. 1070 | Savant, Smita; Parikh, Nutan; Nair, B. G.; Chhatpar, H. S.

Apospory in eremopogon Foveolatus (Del. )Stapf
p. 1072 | Sathyamurthy, T. V. Ch.; Seshvatharam, V.

Announcements
p. 1073

Correspondence
p. 1074

Announcements
p. 1076

Book Reviews
p. 1077