Fans Ventilation & Heating Circa.  1910 56 Pages File Size 7.14 Meg	General Catalogue from Buffalo Forge Circa. 1896 406 Pages File Size 48.8 Meg.	A Treatise on Centrifugal Fans Circa 1905 232 Pages File Size 19.6 Meg.
The Plenum, of Propulsion System Circa. 1891 126 Pages File Size 14.8 Meg.	An Outline of Ventilation & Warming Circa. 1899 90 Pages File Size 5.97 Meg.	Air Currents & the Laws of Ventilation Circa. 1907 116 Pages File Size 20.4 Meg.
Lectures on Ventilation Circa. 1869 80 Pages File Size 9.6 Meg.	Mechanical Draft. A Practical Treatise Circa. 1901 409 Pages File Size 78.8 Meg.	Ventilation of Buildings Circa. 1906 136 Pages File Size 11.1 Meg