Growth in Eriogonum nudum 



21' 



the ocean fog bank, which may rest over the coastal zone, sometimes 

 as a "high fog" and occasionally as a "low fog". Even these dis- 

 turbances, however, are scarcely ever erratic. If fog occurs, it usually 

 persists for several days, during which the temperatures vary very 

 closely within definite limits. If sunshine prevails, this usually persists 

 for several days, with equally definite temperatures, which usually are 

 but little higher than during the foggy periods. 



As to temperatures in particular as recorded by a thermograph, 

 during 70 days ending September loth, 1916, the day maximum was 



TABLE I. 

 Typical evaporation,, temperature and relative humidity data for 

 Carmel, California, during the dry summer. Spherical porous cup 

 (black) atmometers 1916 (see also Table 4). 



Hour 



July 8 

 Evap. 

 R. H. 

 T. 



July 10 

 Evap. 

 R. H. 

 T. 



July II 

 Evap. 

 R. H. 

 T. 



July 14 

 Evap. 

 R. H. 

 T. 



July 15 

 Evap. 

 R. H. 

 T. 



1 .00 



73 

 61 

 Sunli 



13 

 73 

 67 



Sunli 



Sun t 



High 



Occas 



1.85 

 65 

 68 

 ght 



1-7 



ght c 



59 

 ill 14 



1-55 

 79 

 59 

 fog, s 



74 

 65 



ional 

 930 



315 

 57 

 72 

 ontin 



2.5 

 62 

 70 

 ontin 



2.25 

 64 

 70 

 hr. 



1 .2 



74 

 60 

 un at 



2.7 

 73 



4.1 

 48 



74 

 uous 



3-9 

 64 

 69 

 uous 



2.0 



65 

 69 



II-3 



4.0 

 65 

 69 



Hig 

 I 



12 13 



4-35 

 51 

 70 



3-7 

 60 



70 



3-8 



68 



66 



30 

 67 

 68 



h fog 

 1. 00 



425 

 57 

 69 



385 

 59 

 69 



3.8 



7-55 

 62 



71 



30 

 67 

 69 



14 



4.0 

 56 

 71 



3-85 

 61 



68 



3-5 

 72 



65 



30 

 68 

 71 



Sun 



15 



4.0 



55 

 72 



3-7 

 61 

 69 



4-4 



3-5 

 71 



68 



15-2 



16 



3-9 



71 



66 



3-4 

 69 

 62 



Hi 



o till 



17 



2.7 



67 



63 



2.4 

 81 

 59 



59 

 gh f 



1 .2 



n 

 60 



Hi 



5-2 



78 



63 



16.2 



18 Night 



1-7 

 81 

 60 



•9 



og I 



gh f 



I .0 



87 

 59 



o 



Dew 



Low fog 



Fog 21 hr. 

 4 hr. on 



og 14 hr. on 



Dew 23 hr. 



