as the example in figure 2 showed,, permits a sufficiently accurate determina- 

 tion by means of the combination of the median values of H and L. 



The proposed frequency valuation for a determination of wave action 

 requires from 2 to 4 hours of evaluation work or about one-half of the time 

 required by other methods „ This frequency valuation works out favorably 

 for long continued measurements for statistical purposes because valuations 

 carried out at intervals of 3 to 6 hours suffice for the description of the 

 wave action over long periods c For the future, an instrument must be sought, 

 which undertakes the location of the measurements of a number of wave heights 

 and lengths into classes and as a result yields the frequency distribution 

 of the first and second kind 



Schrif ttum (References) 



lo Pabst; Uber ein Gerat zur Me s sung und Aufzeichnung des Seegangs. 

 DVL-Bsricht Nr 360, ZFM 1933c 



2 Mewes; Seegangsunterscheidungen im Seeflugwesen Jahrbuch 1937 

 der Deutschen Versuchsanstalt fur Luftfagrt E„ V. 



3o Mewesj Baitrage zur Frange der Grosse der in Nord- und Ostee 

 vorkommenden Veil en „ Deutsche Luf tfahrtforschung s Untersucho u. 

 Mitteil, Nr„ 478 „ 



4° Czuber; Die statistischen Forschungsmethoden» Verlag von 

 Lo F„ Seidel u. Sohn, 3 Auflage, 1938o 



5o fechel und Daevess Ein neues Hilfsmittel der Grobzahlforschungo 

 Stahl and liisen 1934, Heft 51. 



35 



