Livres à acheter.

Daniell Meteorogical essays

Peckston Work ou gaz-lighting

Tredgold an essay on the principles and practice of heating by steam

Meikleham a practical treatise on the various methods of heating buildings by steam, hot air, stones and open fires.

Observations on the effects of lightning on floating bodies by W. Snow Harris 4^to with six plates (12 sh.)