IN NOVA SCOTIA, 1911. MACKAY. 179 



Averaging Local Phenochrons for "Region" or "Belt" 

 Phenochrons. If ten or fewer good phenologieal observation 

 schedules can be selected from those belonging to any given 

 belt, they may be averaged as indicated in the columns within. 

 If there are not ten from each belt, then it may be better to 

 combine two belts, or if necessary, three belts on the form 

 within. In the latter case the average will be the "region" 

 phenochrons. When a full sheet can be made out for each belt, 

 the average of the phenochrons for the three "belts" will give 

 the phenochrons for the "region." Finally, the phenochrons of 

 each of the ten regions will be averaged to find the provincial 

 phenochron for each phenomenon on the list. This will be 

 done by the compiler-in-chief. 



There is a convenience in- averaging the dates of ten 

 stations, which accounts for the ten columns for stations in the 

 form* within. When a few dates are not given it may be fair 

 to enter in the blanks* the dates from a similar and neighboring 

 station which is not otherwise utilized for the sheet. Great 

 care should be taken that such observations taken from a 

 schedule not summarized, should be what might have been 

 observed at the station indicated in the heading, and to indicate 

 such a transference the date should be surrounded by a circle 

 with the pen, which would always means that the observation 

 was not made in the station heading the column,* but in a 

 neighbouring one, and was taken from a supernumerary 

 schedule. 



Thunder-Storms. These dates will be entered in their 

 respective columns and opposite the month indicated. They 

 will not be averaged, of course. The number of observation 

 schedules represented in any "region" or general sheet under 

 this head should be noted somewhere on the top margin of the 

 page. 



Accuracy. Care must be exercised in selecting schedules, 

 the observations of which appear to have been carefully made, 



*Footnote on p. 180. 



