"'Graphical Construction of Wave Refraction Diagrams ," Jo Wo Johnson, 

 Mo Po O'Briens, Jo Do Isaacs, Uo So Navy, Hydrographic Office, Ho = 

 Puhlication NOo 605, January 1948, A5 PPo 



"Hie technique of constniction of wave refraction diagrams by the 

 methods of wave fronts j, orthogonalsg and aerial photographs are 

 described in detailo Several illustrative examples are included. 

 Some of the mechanical aids useful in the constructions are ex- 

 plained and illustratedo 



"Oceanographic Observations of the »Eo Wo Scrippa' Cruises of 19Als^ 

 Ho Uo Sverdrup, Scrippg Institution of Oqeanography, Records of 

 Observations J, Volume 1, No„ 4,, 1947, 159 ppo 



The data presented are of observations of temperature, salinity, 

 and oxygen content at depths from surface to 600 me tars o Com^^ 

 puted values of (yu anomalies of specific volume, and dynamic 

 depth are included o "Hie observations of plankton diatoms are 

 for seven depths to a maximum of 60 meters o 



16 



