HAEMO:sriC AISIALYSIS AND PEEDICTIOX OP TIDES. 



159 



ian, the height dial, marigram gear, marigram scale, and datum 

 plane are copied directly from Form 444. 



For the amplitude settings the amplitudes of column B of Form 

 444 are multiplied by the factors / from Table 14 for the year for 

 which the predictions are to be made. A convenient way to apply 



Fig. 34. 



these factors is to prepare a strip of paper with the same vertical 

 spacing as the lines on Form 444 and enter the factors / for the 

 required year on this strip. The strip may then be placed alongside 

 of column B of Form 444 and the multiplication be performed. The 

 same strip will serve for every station for which predictions are to be 



