448 Th 



They have cost so far an 

 be whispered in Gath tha 

 be undesirable for any su 

 the salaries. Gc 

 live Thousand do' 

 for the fight. 



And the end is not yet. Thirty towns and cities, covering an area 

 of two hundred miles, have the prolific progeny of the unwelcome 

 visitor already infested. Official circulars posted behind the Salem 

 postoffice door impart the unwelcome intelligence that they are here. 



If the ninety and nine moths are killed and the one that escapes 

 becomes the happy parent of a quarter of a million or so of little gyp- 

 sies, and this ratio of destruction and increase is maintained ad infin- 

 itum, where will the suitable and discreet men eventually be, and Avhat 

 will be left of the State Treasury but an empty chrysalis 1 



PROCEEDINGS OF SCIENTIFIC SOCIETIES. 



U. S. National Academy of Sciences.— This body met in 

 Washington on April 18-2 1st for the transaction of business and the 

 reading of papers. 



The following papers were read : 



The American Maar, G. K. Gilbert ; The Form and Efficiency of 

 the Iced Bar Base Apparatus of the U. S. Coast and Geodetic Survey, 

 R. S. Woodward (Introduced by T. C. Mendenhall) ; On Atmospheric 

 Radiation of Heat in Meteorology, C. Abbe; On the Deflecting FoKWI 

 that Produce the Diurnal Variation of the Normal Terrestrial Mag- 

 netic Field, F. H. Bigelow (Introduced by C. Abbe) ; Abstract of 

 Results from the U. S. Coast and Geodetic Survey Magnetic Observa- 

 tory at Los Angeles, Cal, 1882-1889, part III.; Differential RteasuWI 

 of the Horizontal Component of the Magnetic Force, C. A. Schott ; 

 On the Anatomy and Systematic Position of the Mecoptera, A. S. 

 Packard; On the Laws of the Variation of Latitude. S. C. Chandler; 

 On the Causes of Variations of Period in the Variable Stars, S .<-■ 

 Chandler; On the Force of Gravity at Washington, T. C Menden- 

 hall; On the Recent Variations of Latitude at Washington, T. G 

 Mendenhall; On the Acoustic Properties of Aluminum, with Kxi*»- 

 mental Illustrations, A. M. Mayer; Description of the Silver Haloid 

 Molecule by Mechanical Force, M. Carey Lea ( Introduced by G.t. 

 Barker); On the Homologies of the Cranial Arches of the Reptile 



