12 
There have been added to the collection twenty-seven photo- 
graphs, which are displayed on the wall near to the wood speci- 
mens of the same species. This collection contains at the present 
time, 420 species and twenty-five varieties, dressed and on exhi- 
bition. Nine species have yet to be obtained to make this collec- 
tion absolutely complete ; they are very difficult to acquire, inas- 
much as they have rarely been seen during recent years. 
Two hundred and forty-three water colors have been received, 
and two hundred and twelve more have yet to be prepared, to 
complete the whole series. The necessary photographs will be 
added as rapidly as possible. 
This entire collection of woods, water color drawings and 
photographs have been scientifically arranged under the super- 
vision of Professor Charles S. Sargent, the eminent arboriculturist, 
in charge of the Arnold Arboretum of Harvard College, Brook- 
line, Mass. 
The year just past has been a period of much confusion and 
consequent expense, involved by the necessary transfer and storage 
of the specimens. This work has required the use of the entire 
force of the Superintendent of the building, and additional help 
often had to be engaged. The progress of the work was regularly 
reported to me, and a close supervision kept. This plan resulted 
in securing the utmost economy in outlay, and the best possible 
returns for the expenditure. 
Upon the completion of the new wing there will have been 
used in the work on the same more than four million brick, two 
thousand two hundred tons of granite, eleven thousand square 
feet of glass for lighting, and eighty-five thousand seven hundred 
and twenty-five cubic feet of rubble work in the construction of 
the foundation. The foundation of a portion of the east wing 
was excavated to a depth of more than fifty-two feet. It may be 
interesting to incorporate these figures in the Annual Report of 
this year, as they will no doubt be of some statistical interest in 
the future. 
It is my sad duty to record the death of our late associate, Mr. 
Hugh Auchincloss. His relation as a member of the Board of 
Trustees extended over a period of more than eight years, during 
which time he held the position of Secretary, from which office 
