Sweet Pea Notebooks : Sweet pea notebook titled 'Lathyrus ledger' [summaries of 1903-1931 & 1936-1939 crosses]

Sweet Pea Notebooks

Notebook containing summary records of 1903-1931 crosses from Bateson and Punnett's sweet pea experiments (mainly 1908-1931). Entries begin page <a href='' onclick='store.loadPage(5);return false;'>1:1v</a> with a list of letter codes, A1-H, referring to phenotypic characters, where A1 represents ‘purple-red’ (flowers), A2 - long/round (pollen), A3 - erect/hooded (flower shape), etc. The records then summarise the crosses for A1 plants for each year pp <a href='' onclick='store.loadPage(6);return false;'>1:2-1:21r</a>, followed by those for A2 pp <a href='' onclick='store.loadPage(27);return false;'>1:22-1:35</a> etc. all the way to H. Further notes on subsequent crosses conducted from 1936-1939 are provided on page <a href='' onclick='store.loadPage(139);return false;'>133v</a> and on five pages of notes loosely inserted into the back of the book pp <a href='' onclick='store.loadPage(160);return false;'>2:1-2:4</a>.