50 MUSEUM OF COMPARATIVE ZOOLOGY. [Mar. 



to their investigations as are already arranged and put up in the exhibition 

 rooms. They maybe permitted to remove such specimens from the shelves of 

 the Museum to some of the working rooms, for the sake of greater convenience 

 in their researches, and be furnished with all the facilities necessary for their 

 work. No specimen, however, to be removed from its place in the Museum 

 without a previous special order of the Curator. 



8th. Materials not yet worked up and catalogued by the officers of the 

 Museum may also be intrusted to special investigators, and placed at their 

 disposal in the same way as above stated, always under the condition that such 

 persons be competent to make a good scientific use of them. The Curator may, 

 however, at all times, reserve such materials for the use of the officers of the 

 Museum, or for himself, whenever the interests of the institution and of science 

 may require it. The Curator is especially expected to exercise the utmost 

 caution in granting such facilities, in order to prevent an indiscreet use of the 

 most valuable property of the Museum; and also to discountenance the 

 practice of describing isolated species, and the like fragmentary work. All 

 the specimens described shall be entered in the Museum Catalogue, and 

 provided with a label, signed by the person who named them. 



9th. Specimens needed for special investigations by naturalists residing at a 

 distance from Cambridge may be sent to them by the Curator, and allowed to 

 remain away for a limited time, provided the applicant for such a favor is 

 known to be capable of using such specimens for the advancement of science, 

 and provided also that some other scientific man, equally known in the scien- 

 tific world, or some learned society with which he may be connected, shall 

 vouch with him for the safe return of the specimens lent, within the time 

 specified. No beginner shall be allowed such favors ; they shall be extended 

 only to men who are known in the scientific world as original investigators. 



10th. It is expected that all persons availing themselves of the facilities 

 afforded by the Museum for their researches shall take the best possible care 

 of the specimens ; that they shall not alter their condition by dissections or 

 otherwise, without special leave ; that they shall carefully preserve all the 

 labels, numbers, or other indications relating to their origin which may be con- 

 nected with them ; and finally, that, in their publications, they shall make due 

 acknowledgment of their indebtedness to the Museum: otherwise these 

 advantages shall thereafter be denied them. 



