THE INDIAN OCEAN 
RE PUMICE OR VOLCANIC DUST WAS SEEN IN 
BE Tay THE PIAL E OFUBSERVA DATE IS GIVEN BY THE DAY OF THE YEAR THUS 0200 27™ gcr, 
FROM AUC.TO DEC. 1883.— THE PLACE OF OBSERVATION IS SHOWN THUS©, THE 
ate V 
ama 
~ wt Eas 60 ot oe Ts 70 qe, 
Saw BOT Lemsion 
Mustrating M Mddrun's Tatular Statement of the Dates at which, and Localities where, Pumuce or Volcanic Dust was seen in the Indian Ocean in 1883-84. 
