- Darwin on Humus and the Earthworms: the Formation of Vegetable Mould Through the Action of Worms With Observations on Their HabitsDarwin, Charles 1809-1882
Hardcover - Southern Kith and Kin; a Record of My Children's Ancestors; Volume 3Scarborough, Jewel Davis 1887-1968
Hardcover - The Use of X-ray Diffraction Procedures in Analysis of Clay Minerals.Powell, Joseph Edwin
Hardcover