Mar. 1892.] THE BOTANICAL SOCIETY OF EDINBURGH. 291 



33, was the best month in No. 81 ; August, with 016 of 

 amount and 29 p.c, in N"o. 86 ; but June and July were not 

 much behind it. In the older No. 33 July is best, with 

 016 of amount and 37 p.c. ; and, quite exceptionally, April, 

 May, and June came out equal, with 17 p.c. each, but the 

 annual rate was only 0'44, and these results are probably 

 quite abnormal. 



Eagus sylvatica. 



The half-season increase was greatest in both young trees 

 in the second period, and the average for that period of the 

 two, 59'5, comes very near 62 p.c, that of the nine older 

 Beeches. 



July was the best month, with 0"46 of annual average 

 amount, and 35 p.c. in No. 97, and June and July were 

 almost equal in No. 98, with 0-41 and 0-40 of amount, and 34 

 and 33 p.c. In the conjoined nine old Beeches July 

 was decidedly at the head, with 36 p.c, and the proportions 

 for the first and last months were larger in them than in 

 the young trees. 



