From nebula to nebula; being an expansion of the principle of universal gravitation to the solution of cosmic problems in general Q Science
Frost and fire, natural engines, tool-marks and chips, with sketches taken at home and abroad Q Science
The fundamental equations of dynamics and its main coördinate systems vectorially treated and illustrated from rigid dynamics Q Science
The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology Q Science