18 



Canadian Record of Science. 



dates of these phenomena are really those of a more 

 southern latitude than those of the other phenomena. 

 The phenological norm or phenochrons for each year must 

 therefore be in error to a certain extent. But the table is 

 given here to illustrate such results as have been obtained. 

 Following it will be given phenochron for each county of 

 the province of Nova Scotia, based on ten plants normally 

 liowering from the first of April to the first of June, at ten 

 different stations in each county. 



MEAN OF TWENTY PHENOLOGICAL OBSERVATIONS, NOVA SCOTIA, 

 FOR THE SEVEN YEARS, 1892 TO 1S98. 



Species common toa)S» o'& J'S aig a>S a>S «>o5 



llie AdUltJft Oi lilt: ^^ j_.^ 55.-, ^^ pj „, ^^ gj^ 



seven years. t-ai t-cu ■-a) ^o s-o "u >- s 



,„. ^ ^ > a >ci ;»s >a > a f^ >t3 



(First appearance). <jp <;a <!p <jc; -fl^Ci -ijp <!pi 



Mayflower, flower. 98 108 104.7 107.00 102.70 106 93.14 



Alder, "..102 114 116.3 103.8 107.55 119 103.50 



Aspen, " ..131 123 , 122.2 117.5 121.90 128 118.66 



Maple, "..123 130 126.3 123.85 124.55 124.8 121.80 



Strawberry, "..129 133 131.6 128.55 128.50 126.5 125.75 



Dog-tooth v.," ..135 136 132.2 125 128.50 131 126 



Cherry(Cult.)" ..146 142 146.3 136.6 143.00 146 141.80 



Indian Pear, ".. 145 144 146 138.35141.65141.8 140.71 



Cherry(Wild)" ..160 144 147 138.15 145.25 142.6 143.20 



Apple, "..146 146 1.52.1 143.7 151.10 155.3 148.40 



Lilac, "..1.54 160 162.3 1-53.5 160.50 157 155.14 



Hawthorn, "..163 160 160.3 148.75 160.25 156 158 



Wild Goose 54 88 70.6 78.00 80.00 80 73.80 



Robin 96 94 73.2 99.30 96.14 91 58 



Song Sparrow.... 99 115 79 96.65 94.66 95.6 71 



Frogs piping 105 113 112.8 110.55 106.30 113.2 101.80 



Swallow 106 119 119 125.75 117.76 (117.5) (117.5) 



Kingfisher 128 137 128.7 127.50 122.00 141.6 130,50 



Humming Bird. ..143 159 143.0 137.25 139.30 143 143.50 



NightHawk. ...150 144 158.8 148.00 154.33 165.5 145.30 

 Phenological Norm 



or Phenochron — 



Seven-year 



Normal Date 



or Phenochron 



of each species. 



102.79 12 Apr. 

 109.45 19 " 

 123.18 3 May 

 124.90 4 

 128.99 8 

 130.53 10 

 143.10 23 

 142.50 22 

 144.31 24 



148.94 28 " 

 157.49 6 June 

 158.04 7 " 



74.91 15 Mar. 

 86.81 27 " 

 92.99 2 Apr. 



108.95 IS " 

 (117.50)27 " 

 130.76 10 May 

 144.01 24 " 

 152.28 1 June 



of each year. . .125.15 

 (t.e.)May ,5th 



130.45 

 10th 



126.62 124.39 126.30 129.07 120.88 126.12 

 6th 4th 6th 9th 30 Ap. 6 May 6 May 



Were the above table based on perfectly even and sym- 

 metrical elements, as indicated before, we could say that 

 the biological, or more properly speaking, phenological 

 comdition of the province on the 5th of May, 1892, occurred 

 ou the 10th in ISOo, on the 6th in 1894, on the 4th in 



