Mr. Bevan on the Ash Timber of Earls Barton. 51 



Species. Icon. 



14. L. Roscida, Fab. ... Ernst,VI.Pl.CCXX.f.307.a— d. 



15. — Irrorea, Hubn.... Ernst,VI. Pl.CCXX.f.306.a— e. 



16. — Aurita, Esp Ernst,VI.Pl,CCXIX.f.305.a— c. 



17. -• Ramosa, Fab Ernst, VI. PI. CCXIX. f. 305. d. 



18. — Eborina, Hiibn... Ernst,VI.P].CCXIX.f.304.a— c. 



19. — Jacobece, Linn. ... Ernst. VI. PI. CCXXII. f. 312. 



a— f. 



Fam. C. — Antennae setaceous ; anterior wings broad, with 

 semi-transparent spots ; posterior wings very small : pos- 

 terior portion of the body with black dots. 



20. L. Ancilla, Linn. ... Ernst, VI. PI. CCXXIII. f. 314. 



a — e. 



21. — Punctata, Fab. ... Ernst, VI. Pi. CCXXIII. f. 315. 



a. b. 



Fam. D. — Antennae setaceous ; in the male the setae ex- 

 tremely delicate, and scarcely visible to the naked eye; 

 wings broad, rounded, sub-diaphanous, with dark-colour- 

 ed spots. 



22. L. Mundana, Linn. . Hiibn. Bomb. Tab. 17. f. 63. (mas.) 



64. (fbem.) f. 65. (mas.) 



23. — Murina, Hiibn.... Hubn. Beitr. II. B.3. Th.II.Taf. 



% K. S.66.— Bomb.Tab.l7. 

 f. 62. (mas.) 



24. — Senex, Hiibn Hubn.Bomb.Tab.55.f.236.(mas.) 



237. (foem.) 

 [To be continued.] 



VI. On the superior Qualities of the Ash Timber "which grows 

 at Earls Barton, in Northamptonshire. By B. Bevan, £sy. 



To the Editors of the Philosophical Magazine and Annals. 

 Gentlemen, 

 TIJAVING been informed that the Ash timber which grows 

 -■--■■ in the parish of Earls Barton, in the county of Northamp- 

 ton, and in the adjoining parishes, is supposed to possess su- 

 perior qualities to any ash timber growing in different parts 

 of the country, I obtained a specimen of it for the purpose of 

 ascertaining, by a set of experiments, how far this opinion of 

 its superior qualities was correct. The results of my experi- 

 ments I beg leave to offer to the public through the medium 

 of your Magazine, with a view to excite a comparison wilh the 

 qualities of ash limber growing in different parts of the coun- 

 try. The specimen I obtained, aj:)peared to have been taken 

 from near the butt or lower part of a young tree. Its specific 

 gravity was -765. I found the modulus of elasticity to be 



H 2 957,000 



