96 MEMOIES OF THE NATIONAL ACADEMY OF SCIENCES. 



band extremely irregular ^sbaped, black, with yellow and white external border ; fringe gray, 

 heavily spotted with black at base; a creaui colored spot at extremity of first median branch; 

 secondaries crossed in the middle by a broad black Y-shaped band, the furca of which is filled 

 by a hyaline- white spot, the outer edge partly margined with yellowish white ; a white bordered 

 oblique black ^-shaped subapical stripe ; fringe white, with an interrupted black basal stripe ; a 

 creamy white spot at extremity of first median branch ; body above fuliginous-brown, metathorax 

 white; antennse and legs of male whitish with blackish bands; of female pale brown ; the legs 

 whitish below; venter white; wings of male below suffused with white, so that the markings, 

 especially of the primaries, are extremely indistinct ; expanse of wings S 19 millimeters, 9 10 

 millimeters. 



In general appearance this species somewhat resembles Feldkr's Geratoclasis barbicornis, 

 next to which, I think, it ought to stand." 



IDENTIFICATION OF THE SPECIMENS OF DR. FALISA'S ORIGINAL COLLECTION. 



A letter received from Dr. Palisa, dated Vienna, December 1, 1S83, gives a brief account 

 of the identifications of his collection of 15 specimens, which have been made by Professor 



EOGENHOFER. 



1. Biadema bolina, L. 



2. Cyllo {Melanitis Fab.), Leda L., var. taitensis, Feld. 



3. Sphynx convolvuU, L. 



4. Macroglossa. 



5. Vtethesia pulehella, L. 



6. Prodenia, sp. 



7. Spodoptera achronyctoidcs, GuL. 



8. Achaea JMelicertc, Am., v. Ugrina, Fab. 



9. Bemigia frugalis, Fab. 



10. Botys. 



11. Botys phaeopteralis? 



12. Aethaloessa meridionaUs, Walk. 



13. Geratoclasis., new sp. 



14. Hymenia {Zinkonia) albifascialis. 



15. Tinea. 



§ 7. CHEMICAL CONSTITUENTS OF THE SEA-WATER IN THE LAGOON AT CAROLINE ISLAND. 



(Deterruiiied by Messrs. Stillwell and Gladding.) 



A sample of water from the lagoon was brought home by Mr. Upton and submitted for 

 chemical analysis to Messrs. Stillwell & Gladding, analytical and consulting chemists, 

 New York. The following is their report of the analysis : 



"New York, August 8, 1883. 



"Result of analysis of a sample of lagoon water from Caroline Island : 



Per cent. 

 ( 1.895 

 Chlorine (duplicate determinations) < 



\ 1. oyo 



Calcium oxide 0, 057 



Magnesium oxide 0. 220 



Sulphuric oxide - - - - 0. 219 



