The SciencesJuly 2, 1910
Plant Parasites
Experimental Parasitism in the Higher Plants
Stories by D. T. Macdougal
The SciencesSeptember 25, 1909
Aridity and Evolution
The Effect of Dryness on Life
The SciencesSeptember 18, 1909
Aridity and Evolution
The Effect of Dryness on Life
The SciencesOctober 17, 1908
The Seasonal Activities of Plants
Factors Affecting Development and Distribution Director of the Department of Botanical Research, Carnegie Institution
The SciencesSeptember 12, 1908
The Faculties of Plants