The poles by Ley, Willy

Annual report on wood protection 1956 by Kinberg, Willy

Hibernation torpor mammals birds by Lyman, Charles P.

Subjects:

Advances in cladistics : proceedings of the second meeting of the Willi Hennig Society

Methods in enzymology

Guess who? by Willis, Ann

Timber : from forest to consumer by Willis, W.E

A guide to forecasting for planners and managers by Willis, Raymond E.

Methods in enzymology

A dictionary of the flowering plants and ferns by Willis, J.C

A dictionary of the flowering plants and ferns by Willis, J.C

Insect phylogeny by Hennig, Willi

Environmental valuation

Environmental valuation : new perspectives

Annual Report on Wood Protection 1953/54 by Kinberg, Willy

Ecology of dunes, salt marsh and shingle by Packham, J.R

Age and area: a study in geographical distribution and origin of species by Willis, J.C

The Eucalypts : botany, cultivation, chemistry and utilization by Penfold, A.R

The mutual interaction of higher plants-allelopathy by Griimmer, Gerhard

Rubber in the east : being the official account of the Ceylon rubber exhibition held in the Royal Botanic Gardens, Peradeniya, in September, 1906