LIST OF FK7URES 



1. Index in;i|> showiiin areas sounded and sampled off 



soiitluTi) California 3 



2. IMot of (Iifr<-rciiCf Ix-tweeti wire depth and 



sonic deplli correi'teil lor sounil velocity 5 



3. Ilneneine Canyon 9 



4. Mll^;;ll Canyon 11 



5. nunic Canyon 13 



<i. Santa Monica Canyon \S 



7. Rcdondo Canyon 17 



S. San I'cdro Sea Valley 19 



9. Newport Canyon 21 



10. l.a Jolla Can\()n 23 



11. Coronado Can\«)n 25 



12. Santa Cm/ Canyon 27 



13. Santa Catalina Canyon 29 



14. San CIcinente "Rift Valley" 31 



15. 'I'anner Canyon 33 



W). KeIalionslii|is of wall steepness and lieif^lu to slope of canj'on axes . . 34 



17. I'loliies of sulunarine caoNons compared with litholo)j;y \vhere known . 35 



18. I'ositions and depths of water samples in six canyons at stations shown by 



ojien circles in l''ijj;iires 3 throiif;ii 15 51 



I'J. Characteristics of water in Kedondo Canyon 52 



20. Keiationship of meilian diameters of samples from submarine cannons to 



fri(|uenc>' of occurrence, sortinfj; coelhcient, and contents of calcium 



carbonate and Kjeliiahl nitrogen 55 



21. Results of separate iletermiiiations for (U-ganic carboti on sub-samples, 



based on (1) analysis for carbon in residue from carbonate analysis, 



anil (2) on analysis for total carbon minus carbonate carbon . . 58 



22. Comparison of carbon aiul nitrogen analyses on samples from submarine 



canvons 59 



