in which leading scientists talk in a programme edited by Professor E. N. da C. Andrade, F.R.S. The speakers this week are Sir Edward Salisbury, C.B.E., F.R.S., Director of the Royal Botanic Gardens, Kew, on ' Seed Time and Harvest'; and Dr. C. D. Darlington, F.R.S ., Director of the John Innes Horticultural Institution, whose subject is ' How I first saw a Chromosome '
