VIU CONTENTS. 



PAGE 



GENEEAL DIRECTIONS 25 



Purification ib. 



Occasional Death 27 



Instruments ib. 



Artificial Aeration 28 



Evaporation 30 



Cleansing the Sides 31 



Turbidity 34 



Food 37 



INSTRUCTIONS FOR COLLECTING 38 



Time ib. 



Implements 39 



Collecting Sea-weeds 40 



Collecting Animals 45 



Dredging 47 



Towing ib. 



