ym 
Officers, their Duties. 
CHAP * *As laic ^ ^ 0Wn m ^ e followin S chapter ;* and shall 
sistant Libra- likewise see that due order and decency be pre- 
served by all persons in the Museum, either vi- 
sitors or domestics. 
14. Each of the above officers is to attend 
two days in the week during the Museum hours, 
either as such directing officer, or in discharge 
of Ordinary Duties of his department, accord- 
ing to a rotation to be settled among themselves, 
from time to time, subject to the approbation of 
the Principal Librarian. 
Ordinary Duty 15. The Under and Assistant Librarian shall, 
SsonheUn- upon their two days of Ordinary Duty in each, 
ant Libraries" week, respectively employ themselves in arrang- 
ing scientifically, and in making catalogues of all 
additions that may be made, from time to time, 
to the collections entrusted to their care ; and 
also in re-arranging the old collections, and cor- 
recting the old catalogues, whenever either may 
stand in need of it : and in performing this duty, 
they shall be particularly careful to enter in the 
catalogues references to the places where the re- 
spective articles are deposited ; and also to note 
and affix on the said articles, the references made 
in the catalogues : and they shall severally report 
their progress in these works to the General 
Meetings, in July, December, and February of 
* See Chap. III. of these Statutes, §3. 
