Macdonald, D.K.C. . Macdonaldand Kelvin / Textual Documents D.K.C.Macdonald. - 1st ed. / - New York : Doubleday , 1964. - 32p. : ill ; 22cm . Subjects--Index Terms: Biography-Scientists Biography-Macdonald G-Biography Dewey Class. No.: 925 / M 119 F