APPENDIX E. INSTRUMENTATION SUMMARY 



The summary presented in this Appendix was prepared to show 

 the instrumentation trend both at the Hydrographic Office and, insofar 

 as is known, at other government and private activities. It is recog- 

 nized that this summary is not all inclusive of the instrumentation in 

 the fields of oceanography and marine geophysics; some of the instru- 

 ments and systems mentioned here are not included in the main part 

 of the Committee report, and vice versa. The instruments listed in 

 the column headed "present method" are generally those currently 

 in use at the Hydrographic Office although most of them were developed 

 by others. 



E-l 



