and regulations herein prescribed, during the continuance of 

 the term hereby 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 per- 

 sons, upon such terms as the said party of the second part 

 shall from time to time direct. But all professors and teachers 

 of public schools of the City of New York, or other institu- 

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

 free of charge, shall be admitted to all the advantages afford- 

 ed 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 afore- 

 said. 



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

 all other property of the 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 sec- 

 ond 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 occu- 

 pation 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- 

 tinuance of this agreement, submit to the said party of the 



