96 



KEY TO ABBEEVIATIONS USED IN SECTION III. AND IN VELOCITY DIAGRAMS. 



The small figures on curve, fig. 606, indicate the number of observations made to obtain the points to whkh they 



are attached. 



Pj = commencement of first phase. 



PZ = commencement of second phase. 



PS = maximum of third phase or large waves. 



Az. = Azores. 



B. = Bombay. 

 Ba. = Batavia. 



Bal. = Baltimore. 

 Bi. = Bidston, near Liverpool. 



C. = Calcutta. 

 Cai. = Cairo. 



Ch. = Christchurch, New Zealand. 

 Cor. = Cordova, Argentina. 

 CT. = Cape Town. 



D. = Dorpat. 

 Dis. = Discovery. 



E. = Edinburgh. 

 H. = Hamburg. 



Ho. = Honolulu. 



I. = Irkutsk. 



K. = Kew. 

 Ko. = Kodaikanal. 

 M. = Madras. 

 Ma. = Manila. 

 Mau. = Mauritius. 

 Me. = Mexico. 



N. = Nicolaiew. 



P. = Perth, W. Australia. 

 Pa. = Paisley. 



S. = Shide, Isle of Wight. 

 St. = Strassburg. 

 St.H. = St. Helena. 

 SF. = San Fernando, Spain. 



T. = Toronto. 

 Ta. = Taschkent. 

 Ti = Tiflis. 

 To. = Tokio. 

 Tr. = Trinidad. 



V. = Victoria, B.C. 



W. = Wellington, New Zealand. 



