A Treatise On The Analytical Geometry Of The Point, Line, Circle, And Conic Sections, Containing An Account Of Its Most Recent Extensions, With Numerous Examples
The Spider Book - A Manual For The Study Of The Spiders And Their Near Relatives, The Scorpions, Pseudoscorpions, Whip-Scorpions, Harvestmen, And Other Members Of The Class Arachnida, Found In America North Of Mexico, With Analytical Keys