1-4 of 4 Books

The formation of vegetable mould through the action of worms, with observations on their habits
By Charles Darwin

The microscope and microscopical methods
By Gage, Simon Henry
Du Tonkin aux Indes, janvier 1895-janvier 1896
Du Tonkin aux Indes, janvier 1895-janvier 1896
By Orléans, Henri Philippe Marie Prince d')

A history of elementary mathematics with hints on methods of teaching
By Florian Cajori