the colours of certain Lepidoptera. 481 



XXX. A large flat wooden box, about 3 decimetres lii<;li, 6|^ 

 wide, 6 centimetres deep ; lined in upper part (standing on 1 long 

 side) with polished Dutch metal, and a clear glass front. 



This bos was subsequently divided into 14 compartments, lined 

 with various colotu's (see LIII. to LXVI.). 



XXXI. Compartment of wooden box, 2-2 decimetres high, 1-14 

 wide, 1-06 deep ; lined with polished Dutch metal (1888, with 

 Dutch leaf in 1886 and 1887) everywhere, except the lower end 

 which formed the floor, and this was covt red with brown paper. 

 The gold-paper back curved gradually into the roof and sides, and 

 both roof and back were well crumpled. Nearly all the space 

 available. Clear glass front. 



XXXII. This was another compartment in the same wooden 

 box which contained YII., 3-3 decimetres high, 1*4 wide in front, 

 1-2 wide at back, 1-25 decimetres deep. The roof sloped back at 

 an angle of 4.5' to increase the illumination, and was '"coiTered" 

 (12 recesses divided by ridges). There were 2 shelves on each side, 

 flat above, making an angle of 45' with the side of the box below. 

 The whole was lined with embossed Dutch metal, except the floor, 

 which was covered with brown paper. Clear glass fi-ont. 



XXXIII. The thu-d compartment in the same wooden box, 

 similar to XXXII. , except that the lining was polished Dutch 

 metal. 



XXXIV., XXXV., XXXVI., XXXVII., XXXVIII., XXXIX. 

 6 out of 12 small compartments in a wooden box, each 9-2 centi- 

 uietres high, 5"4 deep, and varying fi'om 4'5 to o'4 in width. All 

 were lined throughout with gilt paper, XXXIV., XXXV., and 

 XXXVI. being polished Dutch metal, and the other three partly of 

 this and partly embossed Dutch metal. A single sheet of clear 

 glass covered the front of these and the remaining 6 compartments. 



C. Silver and Tin Surroundings. 



The silver-paper employed was of two kinds: — (1) 

 Covered with true silver, having a very bright, hut not 

 polished surface: this will be called "silver paper'"; 

 (2) covered with metallic tin. The surface was more 

 polished than the silver, but not nearly equal to tin-plate 

 This will be spoken of as "tin-paper." In addition to 

 these, boxes of tin-plate were employed, and will be 

 spoken of merely as "tin boxes." 



XL., XLI., XLII., XLIII., XLIV., XLV. The 6 remaining 

 compartments of the same box, of the same dimensions, except that 

 the narrowest was only 2-8 centimetres wide. XL. was Hned with 

 silver, and the rest with tin paper. 



XLVI. The second compartment in the same box which con- 

 tained XXXI. The dimensions and arrangements were the same, 

 except that gilt paper was replaced by silver-paper. Previous to 

 1888 this compartment had been lined with Dutch leaf. 



XLVII. A glass cylinder 1-69 decimetres diameter, and 1-60 

 high. About two-fifths of the circumference at the bottom was 



