REPORTS ON EXPERIMENTAL WORK IN 

 CONNECTION WITH CRANBERRIES. 



H. J. FRANKLIN AND F. W. MORSE. 



REPORT OF CRANBERRY SUBSTATION FOR 1913.^ 



The year's experiments and observations may be discussed under the 

 ten following heads: weather observations, frost protection, fungous dis- 

 eases, varieties, blossom poUination, fertihzers, insects, weeds, resanding 

 and miscellaneous. 



1. WEATHER OBSERVATIONS. 



Blanks have been prepared for recording on a single sheet all the more 

 important phenomena obsei-ved in connection with every frosty night 

 during the cranberry grooving season. On these blanks space has been 

 left for recording the minimum temperatiues at 15 stations (bogs) besides 

 that at the station bog. It is also planned to note in this record the amount 

 of injur}' (estimated) on the Cape and in New Jersey caused by each 

 severe frost. It is hoped that the mass of data condensed in such records 

 •mU make it possible to better understand the Cape frost weather con- 

 ditions and to make more satisfactory frost predictions as a result. Only 

 a few of the temperature observing stations planned for have, as yet, 

 been estabUshed, but it is hoped that another season will see all the 

 thermometers properly placed for taking a fairly representative lot of 

 minimum temperature observations for the entire Cape. The barometric 

 changes and their influence on frost conditions, both as indicated by the 

 weather map and as shown by the action of the barometer itself, have 

 been carefully studied, with some interesting results. The high barometric 

 waves appear, as a rule, to be most dangerous when they extend both 

 far to the North and far to the South, without any low wave on the At- 

 lantic seaboard to the south of us. One of the great imcertainties about 

 the barometric action, as far as the weather map is concerned, seems 

 to be caused by the occasional more rapid deepening of a low wave in or 

 around the lower St. Lawrence valley, than is offset by the advance of the 

 high wave, the general result being a fall of the barometer in an important 



' By H. J. Franklin. 



