228 COURTESIES OF 1 934 



electros of five colored plates which have appeared in the 

 National Geographic Magazine. 



Mrs. Else Bostelmann gave of her best in the colored 

 paintings of deep-sea creatures, and when there is only my 

 memory to assist and check, the artist must indeed be good. 

 George Swanson was of constant help with sketches and 

 pen-and-ink drawings. Perkins Bass and William Ramsey, 

 just out of Dartmouth, made places for themselves and 

 filled them worthily, saving us no end of time and lighten- 

 ing the thousand and one details which are never consid- 

 ered in any prevision of an undertaking such as this. 



The Air Reduction Company designed and generously 

 made for us new types of oxygen tanks and valves, an 

 electric blower and four copper and brass trays for chem- 

 icals, and provided for six hundred feet of hose cable; the 

 Bell Telephone Company in exchange for our old ear- 

 phones, which they wanted for their museum, gave us 

 three sets of their latest models of telephone outfits; the 

 General Electric Company, through Mr. Gerard Swope, 

 had three, new, fused quartz windows made to replace the 

 old ones which had degenerated, and broke under danger- 

 ously low pressure tests. 



The Watson-Stillman Company, thanks to Mr. E. A. 

 Stillman, overhauled the bathysphere, replacing all worn- 

 out parts, and fitted the new windows in place, so per- 

 fectly that not a drop of water entered. Julien P. Friez 

 and Sons loaned us one of their automatic temperature- 

 humidity recorders, enabling us to use our eyes every mo- 



