174с

HIGH VACUA.

BY

G. W. C. KAYE, O.B.E., M.A., D.Sc, F.Inst.P.

superintendent of the physics department the national physical laboratory

Hr—

i"l\-5

1 \ J

WiTH ILLUSTRATIONS

LONGMANS, GREEN AND CO. LTD.

39 PATERNOSTER ROW, LONDON, E.C. 4

new york, toronto bombay, calcutta and madras

1927