188 CHRISTISON—OBSERVATIONS ON 
The greatest percentages in the months were:—For April, 18 p.c. 
in Pinus austriaca and 16 p.c. in Araucaria imbricata; for May, 
28 p.c. in Abzes Lowiana,; for June, 39 p.c. in Seguoza gigantea; 
for July, 30 p.c. in Cupressus Lawsoniana ; for August, 30 p.c. in 
Cedrus Deodara ; and for September, 8 p.c. in the same. 
1. Proportional percentage of the first and second half- 
seasons of growth. 
Excess in the first half was most marked in Avaucaria, the 
proportions being 73 p.c. in the first and 27 p.c. in the second. 
The reverse was most marked in Cedrus Deodara, 34 p.c. in the 
first and 66 p.c. in the second. 
2. Progressive increase and decrease in the growing 
season. 
Abies Lowiana proved to be an exception to the normal 
seasonal progress, as its percentage, which was very large in May, 
28 p.c., dropped in June to 18 p.c, rising again to 22 p.c. in July. 
Cedrus Deodara was remarkable for a steady rise to a maximum 
so late as in August. 
3. Comparison with the Deciduous Group of the same 
period. 
April. | May. | June. | July. | Aug. | Sept. 
Conlon <5 6 ee 8 22 26 24 18 2 
Deeidnous” == se 6 11 18 41 22 2 
The Table shows that the increase was more equably distri- 
buted in the Coniferz, and further investigation proved that this 
depended partly on the maxima of the species occurring in a 
greater variety of months, but partly also on a more equable 
distribution in the individual species. 
