BlBLIOGRAniY OF U. S. NATIONAL MUSEUM. 343 



No. 27. Direct ioiitj for oolUH.-tiny;, proserviiif;, and transporting tortri- 

 oids and other small moths. By C. IT. Fornald. 8vo. 3 j)ages. 



No. 28. Directions for mound exploration. By Cyrus Thomas, Ph. D. 

 8vo. 3 pages. 



No. 21). Provisional i)lan for a collection of nuinmuils to be exhibited at 

 the World's Industrial and ('otton Centennial Exposition of 1884- 

 1885, at New Orleans. By Frederick W. True, curator of the De- 

 partment of ]\l animals. 8vo. 27 pages. 



No. 30. A list of birds, the eggs of which are wanted to complete th« 

 series in the National Museum, with instructions for collecting eggs. 

 By Capt. Charles E. Bendire, U. S. A., honorary curator, Section of 

 Oology, (I. IS. National Museum. 8vo. 4 pages. 



No. 31. Plan to illustrate the mineral -resources of the United States 

 and their utilization, at the World's Industrial and Cotton Centen- 

 nial Exposition of 1884-1885, at New Orleans. By Fred. P. Dewey, 

 curator: Department of Economic Geology and Metallurgy. 8vo. 

 8 pages. 

 [Circulars 10, 20, 21, 22, and 23, which are noticed in the bibliography 



of the Museum report for 1883, as printed in "separate" form during 



that year, are reprinted in Proceedings of the U. S. National Museum, 



vi, 1883, (1884), pp. 431-497.J 



