94 
By the assistant curator of the herbarium: 
February 16. Native wild flowers. Inkowa Club, New York. 
November 16. Foreign trees in our city parks. Torrey Botan- 
ical Club, New York. 
By the resident investigator: 
December 28. The origin of new varieties of Nephrolepis by 
reversion. Bot. Soc. Am., Columbia University. 
APPENDIX 4 
BOARD OF ESTIMATE AND APPORTIONMENT 
Reso.ution Apoptep Marcn 3, 1916, APPROVING THE ForM OF 
CONTRACT, ETC., FOR THE CONSTRUCTION OF A RocK GARDEN. 
Department of Parks, Borough of Brooklyn—Approval of Con- 
tract, Plans, Specifications, Etc. (Cal. No. 65) 
The Secretary presented a communication dated February 7, 
1916, from the Commissioner of Parks, Borough of Brooklyn, re- 
questing approval of form of contract, plans, specifications, etc., 
for the construction of a rock garden in the Botanic Garden and 
Arboretum, at an estimated cost of $2,200; and the following re- 
port of the Bureau of Contract Supervision recommending ap- 
proval thereof in the sum of $2,000: 
FEBRUARY 28, IQI6. 
To THE Boarp oF ESTIMATE AND APPORTIONMENT: 
Gentlemen: On February 8, 1916, you referred to the Bureau of Con- 
tract Supervision a communication from the Commissioner of Parks, Bor- 
ough of Brooklyn, dated February 7, 1916, requesting the aporcral of 
form of contract, plans, specifications and estimate of cost, $2,200, for the 
construction of a rock garden in the Botanic Garden and Arboretum. 
It is proposed to charge one half the cost of this work to the corporate 
stock fund entitled “C.D.P. 200-M. Improvement of Botanic Garden,” 
and the remaining half to the furid entitled “S-566. Suspense Account, 
Contribution for Brooklyn Botanic Garden Improvement Fund.” 
In building roads and other improvements, by departmental labor, in 
the Garden, many large boulders have been excavated, which have not been 
removed because of the expense involved. These have been accumulating 
for some years. Their number has increased considerably by additions 
due to excavating for the buildings at the Garden. There are now about 
