1886-87.] Monthly Increase in Girth of Trees. 



63 



and as the trees measured turned out poor growers, the result 

 is perhaps not quite reliable: — 



Proportional Increase in G-irth in Deciduous Trees in tlie First 

 and SecoTid Half of the Growing Season. 



Proportional Increase in Girth in Evergreen Trees in the First 

 and Second Half of the Gi^owing Season. 



In the evergreens the results are on the w^hole the reverse 

 of those in the deciduous group, the greatest increase having 

 been in the first half of the season, but the difference between 

 the half-seasons is not so marked as in the deciduous trees, 

 and there is greater variety in the behaviour of the species. 



In five, viz., Araucaria, Sequoia, Pinus austriaca, Cupressus, 



