TY  - JOUR
AU  - Schwerdtfeger, H.
TI  - String Figures and other monographs, Chelsea, New York, 1960. $3.95. - String Figures, by W.W.R. Ball. Third edition, 1920. 72 pages. - Methods and Theories for the Solution of Problems of Geometrical Construction, by J. Petersen (translated from the Danish). 1879. 102 pages. - The Elements of Non-Euclidean Plane Geometry and Trigonometry, by H. S. Carslaw. 1916, 179 pages. - History of the Logarithmic Slide Rule and Allied Instruments, by F. Cajori. 1909. 136 pages.
JO  - Canadian mathematical bulletin
PY  - 1960
SP  - 199
EP  - 200
VL  - 3
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025558/
DO  - 10.1017/S0008439500025558
ID  - 10_1017_S0008439500025558
ER  -