.l.UA7i7(M.V MlSKl'M (U'IDl': LEAFLETS 127 



OUR COMMON HrTTKRFLIKS. By Frank E. Lutz, Ph.D. Assis- 

 tant Curator, Department of Invert chrato Zoology. June, 1911. 

 Price, 15 cents. 



Describes and figures natural yize the common species (31 in all) of 

 the eastern United States. 



HOW TO COLLECT AND PRESERVE INSECTS. By Frank E. 

 Li'TZ, Ph.D., Assistant Curator, Department of Invertebrate Zoology. 

 Illustrated, 21 pages. Price, 10 coils. 



REPRINTS 



of Important Articles in the Atnerican Museum Journal. 



THE GROUND SLOTH GROUP. By \V. D. Matthew. April, 1911. 

 Describes the structure and habits of these giant relatives of our sloths 

 and anteatcrs. 8 pages, 4 illustrations. Price, 5 cents. 



METHODS AND RESULTS IN HERPETOLOGY. By Mary C. 

 DicKERSON. October, 1911. Describes the methods used in mount- 

 ing or reproducing Reptiles and Amphibians, 12 pages, 19 illustrations. 

 Price, 5 cents. 



THE WHARF PILE GROUP. By Roy W. Miner. March, 1913. 

 Illustrating specialization to an inactive life as shown by sponges, hy- 

 droids, and sea anemones. 8 pages, 4 illustrations. Price, 5 cents. 



THE SEA WORM GROUP. By Roy W. Miner. November, 1912. 

 Deals with the marine worms of the Atlantic Coast and the battle of 

 life that must be waged by all living creatures. 16 pages, 18 illustra- 

 tions. Price, 10 cents. 



THE ANCESTRY OF THE EDENTATES. By W. D. Matthew, 

 December, 1912. 8 pages, 4 illustrations. Price, 5 cents. 



GUIDE TO THE COLLECTIONS 

 ILLUSTRATED 

 New Edition issued 1914, 127 pages, 65 illus- 

 trations, many full page. Price 25 cents. 



KEY TO THE COLLECTIONS 

 Contains plans of the different floors, notes the chief objects of 

 interest in the various halls, and describes briefly the study collections. 

 Price 5 cents. 



POST CARDS 

 Colored Post Cards showing some of the interesting objects in the 

 Museum may be had at the rate of two for five cents, or a series of 

 fifteen for 25 cents. Plain post cards three for five cents. 



These publications may be purchased in the Visitors' Room, near the 

 entrance, from the Attendants or from the Librarian. 



