Volume 34, Issue 4
October 1951, pages 183-225
pp 183-187 October 1951
The inflorescence ofDichrostachys cinerea is described in detail. In addition to the two externally well-marked zones consisting of the upper perfect and bisexual flowers, and the lower sterile ones, there is a short intermediate zone of a few flowers which form a transition between the two. Sterilization of the inflorescence is basipetal; of the flower centripetal.
pp 188-198 October 1951
pp 199-209 October 1951
Experiments regarding the effects of the hypotonic and hypertonic media on the volume changes are described and the conclusion that the eggs are passive as far as the transport of the salts and water are concerned is arrived at.
The rate of mortality observed when eggs with jelly and without jelly were subjected to hypotonic media is recorded and the conclusion that the envelop of jelly acts in the same way as an impermeable membrane in the case of eggs of other animals is drawn.
The effects of hypotonic media on the volume cf larvæ is described and the role played by the excretory organs and their importance in osmo-regulation is indicated.
pp 210-219 October 1951
pp 220-225 October 1951
The nature of sculpturing of the giant colonies of the control two chromosome ; brewery strain is different in Ragi and Barley malt agar.
The effects of the alleles are similar but find expression in different directions.
Photographs of comparable equivalents in the two media are presented.