the purpose and scope of the paper in an introduc- 
tory paragraph and to give a summary of results 
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Dictionary style. It is recommended that authors 
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breviations, etc., given in Webster’s New Interna- 
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or, if desired, the Oxford Dictionary. Abbrevia- 
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follow those given in U. S. Department of Agri- 
culture Miscellaneous Publication 337. 
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models : 
Batzo, Roderick L., and J. K. Ripkin. 1849. A 
treatise on Pacific gastropods, vii -j- 326 pp., 
8 figs., 1 map. Rice and Shipley, Boston. 
Crawford, David L. 1920**. New or interesting 
Psyllidae of the Pacific Coast (Homop.). Ent . 
News 31 (1): 12-14. 
1920 b. Cerotrioza (Psyllidae, Homop- 
tera). Hawaii. Ent. Soc., Proc. 4 (2): 374-375. 
Rock, Joseph F. 1916. The sandalwoods of Ha- 
waii; a revision of the Hawaiian species of the 
genus Sant alum. Hawaii Bd. Commrs. Agr. and 
Forestry, Div. Forestry Bot. Bui. 3: 1-43, 13 pis. 
In the text, sources should be referred to by author, 
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