350 TKA^'SACTIO^*S and PEOCEEDEsGS of the [Sess. le. 



4'607 inches above the greatest of the three pre%"ious years 

 (1891). 



September was the driest month, with a fall of 0*4 5 5 

 inch; February the wettest, with a fall of 6 "6 9 7 inches. 



Geneeax Eemarks. 



The outstanding features of the year were the un- 



precedentedly hesxj rainfall for February ; the excessively 



light rainfall for September ; the high mean temperature 



of November (4 6°'5) ; and the great gale of the 21st and 



-!2nd of December. 



A. D. EICHAEDSOX, 

 Ohgtrver. 



V. Ox YABIAnOX IN THE LEAVES OF THE WhITE 



Beam Tkee (Pyeus Aria, Linn.), with Exhibition of 



DpJED SpECDIENS. By A. 1). PilCHAEDSON. 



The occurrence of two kinds of leaves in this species 

 was observed in the autumn of 1894, when the leaves 

 were falling from the trees. It was observed in two trees, 

 one about 18 and the other about 16 feet in height. 

 "Whether it is a constant character in trees of all ages of 

 this species I am as yet unable to say, as at the time it 

 was observed in these two plants most of the trees had 

 shed their leaves. 



The leaves, which differ from the normal type of Pyrus 

 Aria, are produced at the bases of the terminal buds on 

 the elongated vegetative shoots, i.e., they are the last leaves 

 pjroduced on these shoots for the season. They differ from 

 the type in having fewer primary lateral veins, and in these 

 being less prominent on the under side of the leaf. Also, 

 the primary veins in these leaves are less regularly parallel 

 to each other in arrangement, and the secondary veins are 

 more prominent than those of the type, so that the venation 

 as a whole has a more reticulated appearance than that of 

 the typical leaf. 



It would appear that this fact may not be without 

 significance, inasmuch as so much importance is attached 

 to venation in the discrimination of the forms of this and 

 allied species of Pyrus. 



