by Hugo de Vries ; translated by J. B. Farmer and A. D. Darbishire

Kraus Reprint 1969 The mutation theory : experiments and observations on the origin of species in the vegetable kingdom / by Hugo de Vries ; translated by J. B. Farmer and A. D. Darbishire vol. 2

Available at 3 libraries

by S.J. Hickson ... [et al.]

A. Asher 1964 A Treatise on zoology / edited by E. Ray Lankester pt. 1

fasc. 1 , fasc. 2

Available at 2 libraries

by J. Bretland Farmer

Williams & Norgate [1913] Home university library of modern knowledge

Available at 19 libraries

Open Court 1910 The mutation theory : experiments and observations on the origin of species in the vegetable kingdom / by Hugo de Vries ; translated by J.B. Farmer and A.D. Darbishire v. 2

Available at 21 libraries

Open Court , Kegan Paul, Trench, Trübner 1909 The mutation theory : experiments and observations on the origin of species in the vegetable kingdom / by Hugo de Vries ; translated by J.B. Farmer and A.D. Darbishire v. 1

Available at 23 libraries

edited by J. Bretland Farmer ; assisted by a staff of specialists

Caxton [19--]

v. 1 , v. 2 , v. 3 , v. 4 , v. 5 , v. 6

Available at 2 libraries