76 One Thotisand Objects 



572. DOWN OF TAWNY OWL (Syrnium ahtco). The 

 separate fibrils of the lower (downy) extremity of a 

 feather vary in different birds. In the Owl they are of 

 two kinds, modifications the one of the other, as re- 

 presented in the plate. (PI. VII., figs. 29, 30.) 



573. DOWN OF GOSHAWK (Astur paliimbarius). The 

 upper ends of the joints scarcely expanded, so that the 

 filaments are almost like jointed transparent hairs. (PI. 

 VII., fig. 31.) 



574. DOWN OF EIDER DUCK (Somateria mollissima). 

 The joints are long and broadly expanded at the upper 

 end into a trumpet-shape, with a slightly notched or 

 waved margin. (PI. VII., fig. 33.) 



575. DOWN OF CUCKOO (Cuculns canorus). The joints 

 about the same length as in the Owl, but expanding more 

 suddenly at the end of each. The filaments slender and 

 delicate. 



576. DOWN OF TURKEY (Meleagris gallopavo). The 

 fibrils are coarse, and the joints numerous; but with the 

 ends only slightly expanded, and toothed at the margin. 



577. DOWN OF LITTLE EGRET (Herodias garzetta). 

 Fibrils short and delicate. Joints numerous, but little 

 swollen a good contrast to the down of the other birds 

 enumerated. 



578. DOWN OF GOLD-CREST (Regnlus <rmfa/?/.r). The 

 joints are short, and their upper extremities expanded, 

 with the margins serrated. (PI. VII. , fig. 32.) 



579. HAIR OF ANTHRENUS LARVA (Anthrenns varius). 

 The larvae of two or three small beetles, destructive in 

 cabinets, of which this is one, are furnished with delicate 

 hairs of two kinds, the most interesting of which is figured. 

 It has long been known to microscopists as ' Hair of 

 Dermestes? (PL VII., fig. i.) 



580. HAIR OF TIRESIAS LARVA (Tiresias serrd). A 

 much larger beetle-larva than the last ; found under the 

 bark of elms. The hairs are larger, but very similar to 

 those of Anthrenus. 



581. HAIR OF PENCIL-TAIL (Polyxenus lagurus). This 

 insect is found under the old bark of elms, and also 



