“The main points of the Einstein theory and the experiments leading to it are explained in an interesting, informal way so that those not trained in mathematical physics can grasp them.”

+ Booklist 16:335 Jl ’20

“Slosson’s ‘Easy lessons in Einstein’ is a good attempt written in an easy style far above the breezy smartness of the Sunday supplements; it is trustworthy and throughout entertaining, if not always instructive. There is perhaps too much about the fourth dimension and somewhat too much striving ‘to loosen up,’ as he puts it, ‘our conventional ideas of the fixity of time and space.’” R: F. Deimel

+ − Freeman 1:422 Jl 14 ’20 1700w Ind 102:371 Je 12 ’20 650w

“A book with which the absolute layman may amuse himself for a few hours.”

+ Nature 106:466 D 9 ’20 60w

“If the reader will take the time to read this little book only as fast as he can really understand it—say a few pages at a time, with intervals of a day or more to let the ideas soak in, or to think them over—he will find this both stimulating and informing.” B. C. G.

+ N Y Call p11 S 12 ’20 500w + N Y P L New Tech Bks p37 Ap ’20 40w Springf’d Republican p8 Ag 5 ’20 650w

SMALLWOOD, WILLIAM MARTIN, and others. Biology for high schools, il *$1.40 Allyn 570

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