Users of this system, can login to view this document.


Enter the following information to request a copy of the document from the responsible person.

A description of ventilators; whereby great quantities of fresh air may with ease be copnveyed into mines, goals, hospitals, work houses and ships, in exchange for their noxious air... account also of their great usefullness in may other respects: as in preserving all sorts of grain dry, sweet and... as also in dry corn, malt, hops, gun-powder etc...

This email address is used for sending the document.