Contract. 69 



and enjoy the exclusive use of the whole of said building, 

 subject to the provisions herein contained, and the rules and 

 regulations herein prescribed, during the continuance of the 

 term granted, or until a surrender thereof, as herein provided. 



Fourthly. — That the exhibition halls of said building shall, 

 on Wednesday, Thursday, Friday and Saturday of each week, 

 and on all legal or public holidays, except Sundays, be kept 

 open and accessible to the public, free of charge, from nine 

 o'clock a.m. until half an hour before sunset, under such rules 

 and regulations as the party of the second part shall from time 

 to time prescribe; but on the remaining days of the week the 

 same shall be only open for exhibition to such persons, upon 

 such terms as the said party of the second part shall from time 

 to time direct. But all professors and teachers of the public 

 schools of the City of New York, or other institutions of 

 learning in said city, in which instruction is given free of 

 charge, shall be admitted to all the advantages afforded by the 

 said party of the second part, through its museum, library, 

 apparatus, and collections, or otherwise, for study, research 

 and investigation, free of any charge therefor, and to the same 

 extent and on the same terms and conditions as any other 

 persons are admitted to such advantages, as aforesaid. 



Fifthly. — That the museum, library and collections, and all 

 other property of said party of the second part, which shall or 

 may be placed in said building, shall continue to be and 

 remain absolutely the property of said party "of the second part, 

 and neither the said party of the first part nor the said the 

 Mayor, Aldermen and Commonalty, shall by reason of said 

 property being placed in said building, or continuing therein, 

 have any right, title, property or interest therein ; nor shall the 

 said party of the second part, by reason of its occupation and 

 use of said building under this agreement, acquire, or be deemed 

 to have any right, title, property or interest in said building, 

 except so far as expressly granted by this agreement. 



Sixthly. — That the said party of the second part shall, on or. 

 before the first day of May, in every year, during the con- 



