Farm foods: or, The rational feeding of farm animals. From the 6th ed. of 'Landwirtschaftliche Fütterungslehre'.

Mode of access: Internet.

Uber den korper, dessen zahlen sich rational aus zwei quadratwu...

Thesis (doctoral)--

Theory of the hydraulic jump and backwater curves /

Mode of access: Internet.

Introduction to philosophy : an inquiry after a rational system of scientific principles in their relation to ultimate reality /

Mode of access: Internet.

The elementary differential geometry of plane curves,

Mode of access: Internet.