The unusually high temperatures and heavy rainfall caused growth to continue much later than normally and thus prevented the wood from ripening properly before winter set in. English walnuts are found at several places throughout the lower peninsula and more particularly in the southern half of the state. In no place, however, are the trees numerous with the exception of a small area around Lexington, where there are approximately 100 trees. Inasmuch as this paper deals with the effect of low temperatures on the English walnut, the minimum temperatures of the weather station nearest to the places mentioned in the following text are given hereunder. Lowest Place Mo.--Date Temp. Allegan Feb. 9 -19 Bay City Feb. 9 -20 Caro Feb. 9 -30 Croswell Feb. 9 -26 Fennville Feb. 9 -20 Flint Feb. 9 -15 Grand Rapids Feb. 9 -16 Gull Lake--Kellogg Farm Feb. 9 -18 Hart Feb. 9 -22 Lansing Feb. 9 -18 Mount Pleasant Feb. 9 -21 Muskegon Feb. 9 -16 Owosso Feb. 9 -20 Saranac Feb. 20 -25 Sparta Feb. 9 -22[A] Leamington, Ont. Feb. 9 -18 Guelph Feb. 9 -30 Simcoe Feb. 9 -30 [Footnote A: Unofficial.] The extreme cold of the past winter following a warm, wet autumn caused a great deal of injury to English walnut trees in this state and elsewhere. The data presented herein were obtained by a careful examination of several plantations or individual trees scattered over the southern half of the lower peninsula in Michigan and in southwestern Ontario. To properly present this information it seems desirable to group the varieties or strains according to their place of origin. Group 1. _Cultivated Varieties from the Pacific Coast._