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friends above meutioned on my behalf, I have picked out 

 representatives of about thirteen types or forms which I have 

 brought with me for exhibition to-night, viz. : — 



1. Marbled type. 8. Marbled one-spot type. 



2. Dark marbled type. 9. Marbled two-spot type. 



3. Light brown marbled type. 10. Brown white patch type. 



4. Brown marbled type. 11. Light brown type. 



5. Dark type. 12. Dusky marbled type. 



6. Dark one-spot type. 13. Brown type. 



7. Light brown one-spot type. 



These types or varieties, however, occur in very dispropor- 

 tionate numbers. No. 1, the marbled type, among those from 

 Akureyri, submitted for your inspection, is, in my opinion, 

 the handsomest ; No. 4, the brown marbled type, is decidedly 

 the commonest ; No. 9, the marbled two-spot type, and 

 No. 3, the light brown marbled type, are likewise fairly 

 common; but No. 1, 3. 4, are connected by almost imper- 

 ceptible gradations. Such types have a tendency to melanism. 

 Nos. 2, 5, 6 and 8, are decidedly scarce; No. 11 would 

 seem to be also very rare ; and it may be laid down as a 

 general principle that the normal forms are the variegated 

 and very elaborately marked ones, and those that possess only 

 one, or almost only one, uniform tint are decidedly scarce. 



Below the Akureyri specimens you will note three from 

 Siglufjordr, highly interesting as representing three varieties, 

 Nos. 1, 2 and 11 of the Akureyri ones, and also as occurring 

 in the high latitude of 66.9°, and, again, because Finsterwalden 

 is not reported as having obtained this species here in 1856. 

 On the other side of the box, the two specimens from Eeyk- 

 javik correspond to Nos. 1 and 2 of the Akureyri ones ; the 

 three from the road to Hengill Mt., to Nos. 1, 2 and 12 of the 

 Akureyri ; the one from Dyrefjordr, to No. 9 ; and the three 

 from Stykkisholmur, to Nos. 1, 2 and 4 of the Akureyri ; and 

 the one with wings closed, from Thorshavn, Faroe Isles, to 

 No. 4. 



Among the few specimens I brought back of this species in 

 1889, Nos. 2, 4 and 12 are represented ; and one var. caught for 



