4 



1 " 

































$X\, 



pX 

















X^ 











































CURVE (l) S^O-lOem. 

 {, = = 60cm. 



S t .= 35 %o 

 CURVE (2) S*= 0-10 cm. 













































70 



60 



50 



40 



30 



1 



.a 



14 



TIME (DAYS! 

 FIG. 9. EFFECT OF SALINITY ON RATE OF FREEZING. 





<->'J 























/ I 

































ml 

























l 





'*' J 











if 











































hr 





o/ 





oy 



' / 

 » / 





0< 



o 



V 



c 















if/ 





/kp/ 





°/ 





'/ 

























K'y 





















— 7 



A 



/ 



























LA> 



'ER 



OEPT 



H = 



00 rr 



. 



















IN! 



IAL i 



ce r 



HICKN 



fcSS 



= 15c 



m. 































85 



8 12 16 20 24 28 32 36 40 

 T!ME (DAYS) 



48 52 56 



FIG. 10. EFFECT OF HEAT OF WATER MASS ON 

 RATE OF FREEZING. 



21 



