PUBLICATIONS

CANADIAN GOVERNMENT PUBLICATIONS
Bi-monthly progress report of the Forest Biology Division.
Former/y pub/ished by authority of the Department of Agriculture.
Vol. 16, No. 6, November-December, 1960.
Vol. 17, No. 1, January-February, 1961.
Free. •f e Cat. No. Fo12-1
Research news. Published by the Forest Products Research Branch.
Bi-monthly. 24cm.
Vol. 4, No. 9, September-October, 1961. Illus.
Vol. 4, No. 10, November-December, 1961.
Free. t e 0 Cat. No. Fo12-2
Annual report of the forest insect and disease survey, 1960. Ottawa,
1961. 121p. Tables, maps. 25cm. Paper cover.
Prepared in the Forest Entomology and Pathology Branch.
Free. o Cat. No. Fo2I-1960
Studies in forest pathology. Ottawa. 25cm. Paper cover.
23.-Pathological deterioration of wind-damaged white spruce and
alpine fi r in the Crescent Spur area of British Columbia, by
N. T. Engelhardt, R. E. Foster, and H. M. Craig. 1961. 20p.
ILlus., tables, graphs.
Prepared in the Forest Entomology and Pathology Laboratory, Victoria,
British Columbia.
Free (single copies). t o Cat. No. Fo22-I/23
Forestry lessons. Ottawa, 1961. 69p. Illus. 22cm. Paper cover.
In order that the principle of forest conservation mail be accepted
and put into practice, the fundam.enta/ principies of forestry must be
taught in the schools and absorbed by the child. The purpose of this
?minuet is to provide the teacher with certain facts that can be presented
to children in such a way as to give tlzem an appreciation of
the value of Canadian forests.
250 per copy. • • Cat. No. Fo42-161
Variation of strength properties within trees and between trees in
a stand of rapid-growth Douglas fir, by T. W. Littleford. Ottawa,
1961. 20p. Illus., tables, figs. 22cm. Processed.
Prepared by the Forest Products Laboratories of Canada.
Free.
Cat. No. F042-256I
Comparison of taper sawing and through-and-through sawing.
Ottawa, 1960. 4p. Figs. 28cm.
Prepared by the Vancouver Laboratory, Forest Products Laboratories.
Free. j Cat. No. Fo42 -2660
Forestry Branch Bulletins. Ottawa.
61.-Native trees of Canada, sixth edition. Ottawa, 1961. xvii, 291p.
Illus. 25cm. Paper cover.
In this sixth edition of Native Trees of Canada, the format of the
previous edition lias been preserved and a number of revisions made to
include the considerable amount of new information which has been
collected, particularty with regard to the distribution of several species.
$2 per copy. Cat. No. Fo45-61
125.-Key to the native trees of Canada, by T. C. Brayshaw. 1960.
43p. Illus. 25cm. Paper cover.
This key is intended to identify mainly the trees described in "Native
Trees of Canada", Forestry Branclz Bulletin 61. As far as possible, identification
is based on vegetative characters. In addition to the identification
of trees in their leafy summer condition, this key makes possible
identification of deciduous trees in their leafless winter condition.
500. per copy. * o Cat. Na. Fo45.125
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