Transactions Society Naval Architects and Marine F.nc/iiicers, Vol. ij, 191Q. 



Plate 80 



To illustrate paper on "Nezv Dcvelopiiients in High Vacuum Apparatus," 

 by G. L. E. Knthny, Esq.. Member. 





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NORRrs PETERS. tNC. LlTHO., WASHINGTON. D. C. 



