00593cam a2200217 a 4500 2503118 BD-DhUL 20150108082729.0 920626s1955 xx 000 0 eng d 2503118 QSL eng QSL BD-DhUL 635 COS Coombes, Raymond Henry. Soil warming by electricity / by Raymond Henry Coombes. London : Cassel , c1955 . xi, 116 p. : ill. ; 20 cm. Includes index. Electrohorticulture. ddc BK ANL 631.544 COO 28758 28758 0 0 ddc 0 635_000000000000000_COS 0 NFIC 53782 DUSL DUSL GEN 1959-01-06 gift 635 COS A6908 2015-01-08 2015-01-08 BK