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expenses of said Chief Botanist and of his assistants to be paid from the annual 
maintenance fund provided by the party of the first part; and the salaries of 
said Chief ee and his assistants shall be continued during such visits or 
expeditions; but that no moneys provided by the party of the first part shall 
e expended in connection with such visits or expeditions that have not been 
expressly appropriated by the party of the first part for such specific purposes. 
Investigation: Advancement of Botanical Science 
SIXTEENTH.—It is expressly understood and agreed that the Chief Botanist 
and one or more assistants shall make botanic researches from time to time 
and that they shall labor to the best of their abil lity for the advancement of 
botanical science, but that the use of said garden for scientific research shall 
not interfere with its use by the public and private schools and of the public 
generally for the purpose of general education or enlightenment, except Hee a 
limited space in the building containing the rooms for instruction may be 
designated by the party of the second part to be used exclusively for research 
purposes. 
Jurisdiction of Commissioner of Parks 
SEVENTEENTH.—It is expressly understood and agreed that the botanic 
garden and arboretum, established and maintained on park lands in the 
Borough of Brooklyn, shall be under the general jurisdiction of the Park 
Commissioner of the Boroughs of Brooklyn and Queens, and that ee 
cation made by the party of the second part for annual maintenance 
or nges, repairs, alterations or renewals to structures in said ie 
and eer or their equipments, shall be made by the party of the second 
part to the Pare Commissioner of the Boroughs of Brooklyn and Queens. 
Electric Light and Power 
EIGHTEENTH.—It is expressly understood and agreed that the necessary 
electric current required for the lighting of the botanic garden and arbo- 
retum, the plant houses and the building containing the instruction rooms 
igented therein, and the necessary electric power required for the ventila- 
tion of the plant houses and rooms of instruction , May be provided, wholl 
or in part, from the power plant of the Meare of the Brooklyn Institute 
of Arts and Sciences, situated on adjacent park lands leased to the said 
Institute, party of the second part; that metal pipes or conduits may be 
laid between the power plant of said museum to the grounds, the plant houses 
and the building containing instruction rooms, such pipes ee scOuaTD wires 
to convey electric current for lighting and ventilatin ng as herein 
and that the cost of furnishing electric current or electric power from the power 
plant of said museum shall be a part of the annual maintenance fund of the 
botanic garden and arboretum, paid by the party of the first part to the party 
of the second part 
Brooklyn Institute Herbarium and Collections 
NINETEENTH.—That the party of the second part herewith agrees that 
the herbarium of the Institute and ot ther botanical collections contained 
