INSTRUCTIONS FOR COLLECTORS. 
Handbook of Instructions for Collectors, issued by the British 
Musenm (Natitral History ).. With Illustrations. ’ Fourth Edition, 
Pp, 224. Index. 1921, 8vo.- 58. 0d. Postage extra. 
Instructions fer Collectors :-— 
No, 7.—Mammals. Fifth» Edition... Pp. 8.4 Text-figures. 
“1919, Byo. 6a." Postage 1d. me 
No. 14.—Mammials, Pt, 1. Skélétons,. with special notes-on the 
Collection of Specimens of Cetacea, By S. Ff, Harmer; Se.D., 
PRS.” Pps. 4 Text-figures, 1917, 8vo. 3d... Postage 1d. 
No, 2, Birds and thew Eggs, Seventh Edition, Pp. 14, 6 Text- 
figures. 1921, 8vo. 6d... Postage: 1. 
No. 3.-—Reptiles, Batrachians “and. Fishes. .-Fourth? Edition. 
Pp.12:) 1916, 8vo. $d. Postage 1d. 
No, 4.--Insects: - Sixth: Edition, © Pp. 12:. ‘Text illustrated. 
1919, 8vo. 6d, Postage 1d. 
No.4. Diptera: (‘Two-winged Flies)... Fourth Edition “Pp. 16: 
Text iustrated. 1919, 8ve. 6d. Postage Id. 
No. 6,--Mosquitoes ~(Oulicide), Pourth Edition, Pp. 8. 
1 Plate, 1979, Byo. 6d. Postage 1d, per ; 
No. 7.-Blodd-sueking Flies, Ticks, etc, By BE. &, Austen: 
~~ Fourth Rdition. Pp. 24. 18 Text-figures. - 1914, svo. 3d: 
Pastage 1d. e 
No. &.--Spiders, Centipedes; ;Peripatus, ete, Third, Edition; 
Pp. 4, 3 Text-fignres. 1914, 8yo. 3d. Postage td. 
No. 9.-Soft-bodied, and other Invertebrate Animals, « Fourth 
Edition. Pp, 20. 1918, 8v6. 64. Postage 1d. 
No. 10.—-Plants. Fifth Edition Pp. 10. 4% Text-figures. ~ 
1920, 8v0. bd. . Postage 1d. ; 
No. 11.—Fossils and Minerals, Fourth Edition. Pp. 8. 1913, 
8vo. 3d. Pastage id. 
No, 12.—-Worms, “By, H.°A. Baylis... Pp. 23. 17 'Text-figureg. 
1915, 8vo, 3d, Postage 14d. . 
No, 13,—Alcohol and Alcoholometers. By S. ¥. Harmer, Sc,D:, 
ERS.~ Pp. 8. 1916, 8v0. 3d. Postage 1d, 
Applications. tothe Museum direct for any of ‘these Inetruc- 
tions should he accompanied by a remittance, including postage. 
Written communications respecting them should ‘be addressed to 
the: Draxctor, British: Musenm (Natural History); Cromwell Road, 
London, S.W.7. S 
