101 
June 10, and Dr. Daniel da Cruz, of the Catholic University of 
America, Washington, D. C., on June 24. 
Professor E. C. Jeffrey, of the department of botany of 
Harvard University, gave an illustrated lecture on “ The Forma- 
tion of Coal,” on April 19, before the Brooklyn Institute of Arts 
and Sciences, at the Academy of Music. Professor Jeffrey’s 
remarkable discoveries concerning the composition of coal have 
been made by means of microscopic rea cut extremely 
thin by means of a microtome. 
During May and June a new iron fence, uniform in style with 
the one enclosing the original area of the Garden, was erected by 
the Mott Iron Works. As a separate contract, entrance turn- 
stiles, with provision for the admission of baby carriages, and 
exit gates planned to permit passage out (but not in) after the 
closing of the grounds, are being constructed for four of the gates. 
The entrance turnstiles have been especially devised by Mr. 
George M. Beerbower; chief engineer of the New York Zoolog- 
ical Park, so as to insure the registration of every entrance, and 
no more and no less, without the necessity of an attendant. It 
will not be possible to twirl the style and thus register several 
“entrances.” The device for the admission of the baby carriages 
was also devised by Mr. Beerbower. The expense of the fence 
and entrances, amounting to approximately $2,500, was met by 
the chairman of the committee on Botanic Garden of the board 
of trustees. 
The contract for the construction of walks on the south addi- 
tion was awarded to the lowest bidder, Louis J. Sieling, 171 
Madison Ave., New York. The total amount of the bid was 
$3,762. The walks are to be of the same type (penetration 
asphalt) as those constructed last season on the remainder of 
the grounds. Work began on May 11. 
After prolonged discussion as to the most suitable tree for the 
two rows on each side of the esplanade approach to the Museum 
building, the choice fell on the flowering dogwood (Cornus 
florida). These trees, to the number of 156, were planted during 
April. 
