Notes appearing in Drosphila Information Service, No13

Scope and Content

These are four short notes which appeared in Drosphila Information Service No 13 and have been copied on to two sheets of paper and added into Pontecorvo's reprints volume. He lists them separately in the index but they have been given one reference here as they all relate to the same publication. It is difficult to read all of the text due to the way the sheets have been folded and placed into the album. Titles are as follows: Attached X-chromosomes arising in the male, by R Lamy and Guido Pontecorvo; Further investigations on the Y L chromosome, by Guido Pontecorvo; Non-disjunction of the autosomes, by Guido Pontecorvo, and Rate of egg-laying at low temperature, by Guido Pontecorvo.