The Chinese walnut is a geographic form of the so-called English walnut. It occurs over a large area of central and northern China, and it is believed that trees from the northernmost range of this species in China are somewhat hardier than the average English walnut from western Europe. The number of trees of this species under observation is very limited, but those that have been seen appear to be promising. The largest and best tree observed grows on the property of Mr. Geo. Corsan at Islington, Ontario. This tree was subjected to -26 degrees F. last winter and was somewhat injured. The growth this spring was delayed longer than normally and some killing back was noted. Eventually the tree started to grow and made a normal amount of growth. Scions from this tree were grafted on two black walnut trees at the Kellogg Farm in 1933 and a vigorous growth was made in that season. These grafts were carefully examined in the spring of 1934 and were found uninjured. Subsequently a very large graft on one medium sized black walnut tree died, but this was due to injury at the point of union rather than to the graft above. The remaining scions made a good growth this season. Seedling trees of another strain of Chinese walnut showed some variation in their hardiness. Some came through in good condition and made a vigorous growth but others were more or less injured. The limited number of trees under observation scarcely justifies definite conclusion, but it would seem as though this form of Juglans regia is worthy of a wider trial in southern Michigan. _Types of Winter Injury_ The following forms of winter injury which have been referred to in the preceding notes are given special attention hereunder. (1) Killing back of branches.