SCIENCE 



Nbw Series 



Vol, XLUL No. 1113 



Friday, Apeil 28, 1916 



Single Copies, 16 Cts. 

 AUNTiL Sdbsobiption. |5.00 



A New Freas Electric Vacuum Oven 



The Oven illustrated is identical with the regular Freas Electric Vacuum Oven except 



for its size and a slight change in the arrangement of the door. 



The cast bronze vacuum chamber — internal dimensions 9 inches deep, 9 inches diameter 



— fits in the oven as illustrated. It is provided with racks for shelves, vacuum gauge 



and connections for vacuum and for passing in heated air or reducing gases. The 



ground surfaces of the oven and its doors are held together perfectly by sturdy spring 



clips. This construction allows the surfaces to be easily leground in case of need ; it 



permits also instant removal of the door. 



The vacuum chamber is readily removable, permitting the use of the oven proper — 



chamber dimensions 12 by 12 inches, for regular drying purposes. 



The Freas Electric Vacuum Oven is the only oven for use with vacuum 

 that can be maintained accurately at any temperature desired up to 

 ISC^ C. It is considered the most satisfactory vacuum oven available. 

 Repeat orders received — one recently for four ovens — prove the satis- 

 faction it is giving. 



P • Complete with Vacuum Chamber, inside dimensions 9 X 9 inches, - net $152.50 



FFICC Complete with Vacuum Chamber, inside dimensions 8x18 inches, - net $250.00 



SOLE DISTRIBUtbRS 



EIMER AND AMEND 



FOUNDED 1851 



NEW YORK 



N. Y. 



PITTSBURGH 



PA. 



