clearly written and impartial discus- 
sions of theories. It is a matter fot 
regret that the illustrations are not up 
to the standard of the text. 
Il. An Undescribed Species of Alnus. 
mot. > fz. Britton. ‘Rorreya, Vols iv 
(Aug. 1904) p 124. A description of a 
new species of Alder, based upon a 
specimen collected at GrantCity, Staten 
Island, which was at first thought to 
represent Alnus incana (L.) Willd., and 
was so listed in Appendix No. 7 to the 
Flora of Richmond County, in 1895. It 
may also be found mentioned in our 
Proceedings for Jan. 12th, 1895, under 
the above name. D1. Britton now de- 
scribes it as anew species, to which 
he gives the name A/nus Noveboracensis. 
This will therefore have to replace 4. 
to 
~I 
zncana in our local list. The type spec- 
imen is in the herbarium of the New 
York Botanical Garden. 
SPECIMENS EXHIBITED. 
Mr. Wm. T. Davis exhibited shoots 
of locust trees, collected near Great 
Kills, barked by rabbits. This was 
considered as an indication of how the 
animals were hard pressed for food 
during the past severe winter. 
Dr. Arthur Hollick exhibited speci- 
mens of Drift boulders containing fos- 
sils, collected at Giffordsand Tottenville; 
Cretaceous leaf impressions in ferru- 
ginous shale, from Tottenville; sand- 
stone impregnated with copper, from 
the Princes Bay bluff and two arrow 
points found on the Fox Hills golf 
links. 
