Rational recreations, in which the principles of numbers and natural philosophy are clearly and copiously elucidated, by a series of easy, entertaining, interesting experiments. Among which are all those commonly performed with the cards (1794)
Hooper, W. (William), fl. 1770 · London : Printed for B. Law and son, and G. G. and J. Robinson · leaf 32
hey will be-come more fo by palTing through it. 6. When an objecl is viewed throughtv/o convex lenfes, its apparent length,oj- diameter, will be to its real length, asthe diftance of the focus of the objed-glafs, is to that of the eye-glafs. By thefe, and the foregoing aphorifms,we are enabled to… … ABC Iv Y JLo.i/^ .r..,/^. VclJI. /I 1
Scientific recreations · Card games
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