20 ORGANIZATION OF THE U. S. NATIONAL MUSEUM. 



Egg Catalogue C.Y-a 



Eeptile Catalogue C.VI. 



Fish Catalogue C.VIL 



Shell Catalogue C.YIII. 



Insect Catalogue C.IX. 



i. e., the number of a given department affixed to 

 the letter C. giving its symbol. Thus the 

 Library Catalogue would be C.D.- 



XXXIY. 



Laheling exhibition series. — Each object displayed in the exhibition 

 series is to be provided with a printed label, giving (a) catalogue number, 

 (b) names, (c) locality, {d) source of obtaining, and (e) such explanatory 

 remarks as may be practicable for the purpose of enabling visitors to 

 understand its significance. 



The copy for these labels, with designation of size, according to 

 schedule provided, should be delivered to the Assistant Director, who 

 will attend to the inintiug. 



XXXV. 



Sizes oflahels. — The size of labels to be designated by the size of the 

 space inclosed within the rectangular rule which surrounds the legend 

 upon each label. 



The margin outside of this rule to vary as may be necessary, in accord- 

 ance with the size of the card. 



The size of the label to be designated by two letters j the first indi- 

 cating height, the second length. 



The unit of measurement to be one inch. 



The larger cards to be multiples of the unit. 



The letters shall stand for the numbers in order as follows : A = 1 ; B 

 = 2; C=3, &c. 



A card 2 inches square would be BB ; 3 x 6 inches, CF ; a card 6x3, 

 EC, &c., &c. 



Labels to be printed on thick card-board, unglazed, of some soft neu- 

 tral tint. 



XXXYI. 



Flans for installation and arrangement. — The collections in the Xational 

 Museum are now being assorted and rearranged, for the purpose of plac- 

 ing on exhibition a selected series of objects which shall be of interest to 

 visitors, and of making the remainder serviceable for purposes of scien- 

 tific and technological investigation . A large portion of the most interest- 

 ing material has never yet been exhibited on account of lack of space. 

 The following general principles have been adopted in this woik: 

 1. No object will be placed on exhibition which is not of evident edu- 

 cational value, and likely to interest and instruct a considerable percent- 

 age of the persons visiting the Museum. 



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