SCIENCE 



NSir 8EBII8 



Vol. XLVI. No. 1199 



Friday, December 21, 1917 



BnisLX CoFiBS, 16CT8. 



ANNUA.L SUBSOBIPTIOM, S6.00 





Freas Electric Vacuum Oven 



A Combined Vacuum and Regular Air Drying Oven 



This new type Vacuum Oven fvas designed to meet the demand for a really satisfactory Oven 

 that has been created by the rapidly growing recognition of the advantages of drying in vacuo 

 which allows most drying operations to be conducted more satisfactorily than in an Air Oven and in 

 one-tenth the amoimt of time in a great many instances. 



The Freas Electric Vacuum Oven permits drying operations in vacuo to be conducted at 

 any constant temperature desired up to 180° C. The rugged durable constlruction of the Oven, its 

 accuracy, reliability, convenience and ease of operation render it an excellent Oven to meet the most 

 exacting requirements for laboratory operations both industrial and research. 



An exclusive and most advantageous feature of Oven Type "RV" is that the vacuum chamber 

 is readily removable, allowing use of the Oven proper for regular air drying purposes during periods 

 when vacuum drying is not desired. 

 Freas Electric Vacuum Oven, Type RV, inside dimensions of vacuum chamber 9x9 inches 



Complete Net §215.00 



Freas Electric Vacuum Oven, Type LV, inside dimensions of vacuum chamber 8x8x18 inches 

 Complete Net $315.00 



Descriptive literature available 



EIMER & AMEND 



Founded 1851 



New York 



Pittsburg, Pa. 



Ottawa, Canada 



