Percy SLADEN TRUS? EXPEDITION. 
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THE INDIAN OCEAN 
to illustrate a paper by 
J. STANLEY GARDINER.M.A 
al ee Scale, 7,000,000 or 1 Inch ~ 10-47 Stat. Miles 
100 so ° 100 200 
SSS Se 
Reference 
The soundings ‘ed in Fathoms 
The 100 fathom line us shown tus 
The following abbreviations show the 
quality of bottom. 
Br brown, brik. broken, cl.clay, ci. coral, 
au E fine, gl globigerina, hard, m mud, 
e 08 ooze, r rock, 9. sand, 3ft. soft, sh shells, 
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— -—___- = - = Reprinted.by permission. thom the Geographical Journal, 06 1906 
