926 



SCIENCE. 



[N. S. Vol. XIX. No. 494. 



Occurrence of SoUfugae in Nelrasha: M. H. 



SWENK. 



Some Points on Dermatohia hominis (illus- 

 trated) : H. B. Ward. 



The presidential address was delivered by 

 Lawrence Bruner upon the subject, ' Migra- 

 tions of Birds.' 



The following officers were elected for the 

 ensuing year: 



President — Professor H. B. Duncanson, State 

 Normal School, Peru. 



Vice-President — Professor 0. V. P. Stout, Uni- 

 versity of Nebraska, Lincoln. 



Secretary — ^Dr. R. H. Wolcott, University of 

 Nebraska, Lincoln. 



Treasurer — Mr. A. E. Sheldon, Lincoln. 



Directors — Professor J. H. Powers, Doane Col- 

 lege, Crete; Professor G. R. Chatburn, University 

 of Nebraska, Lincoln; Professor R. A. Emerson, 

 University of Nebraska, Lincoln; Mr. I. S. Trost- 

 ler, Omaha. 



E. H. Wolcott, 



DISCUSSION AND CORRESPONDENCE. 



NAMATOG^AH OR EPIGjEAN ? 



To THE Editor of Science: I suppose every 

 one who has had occasion to write of ecology 

 has mentally grumbled because we have not in 

 English a convenient short word to express 

 what we mean when we say ' land and fresh 

 water,' of moUusks or other invertebrates. 



The German ' Binnen,' when translated into 

 its English equivalent ' inland,' does not seem 

 quite adequate, since the sense is rather ' away 

 from the sea,' instead of ' not of the sea,' or 

 ' of the land and its waters,' whether near or 

 far from the coast. 



' Land shells ' seems to exclude the inhabit- 

 ants of streams and pools. 



Annoyed by the clumsy periphrasis which 

 it has seemed necessary to use, I have spent 

 some time in search for an expression, not 

 already dedicated to some other purpose, which 

 could be used in such cases. 



Epigwan was at first thought of as suitable; 

 its meaning, ' upon the earth ' (earth being 

 understood in the wide sense of land or conti- 

 nent), is not inappropriate, the sound is har- 

 monious, and the word brief. 



The only criticism which suggests itself is 

 that there is nothing in the word directly im- 

 plying the inclusion of the fresh-water forms. 



Gcea was used by the Greeks for the land, 

 in antithesis to Thalassa, the sea, but Gcean 

 seems subject to the same criticism as Epi- 

 gwan, while Hydrogwan would seem to imply 

 inhabitants of the land-waters only and not 

 both land and fresh water. 



Many of the compounds of ' gaea ' are inhar- 

 monious or too long to seem acceptable. 



The Greek ' Nama,' meaning spring, rivulet 

 or stream (whence ' Namatodes,' abounding in 

 streams), seemed to offer a possible compound 

 not too harsh or otherwise unsuitable. Would 

 ' Namatogwan ' seem too cumbersome ? I 

 should be very glad to have suggestions from 

 the readers of Science, some of whom may 

 have in their inner consciousness at this mo- 

 merit the very term needed. 



Wm. H. Dall. 



Smithsonian Institution, 

 June 2, 1904. 



THE blackening OP TEETH IN THE ORIENT. 



To THE Editor of Science: I do not find 

 among my notes a good reference to the black- 

 ening of the teeth in the orient, as to the ma- 

 terials, utensils, motives and distribution. If 

 you will give expression to my poverty, surely 

 some one will help me out. 



O. T. Mason. 



' vegetable balls.' 



With regard to Professor Ganong's query 

 'on the above subject in Science, of April 8, 

 1904, the following reference is given in De 

 loni's ' Sylloge Algarum,' Vol. IV., Section I. 

 (1897). The reference occurs on p. iv of the 

 Bibliography and reads : ' Barclay G — Algoid 

 Lake-balls from South Mist — s. n. t, 8°, 1 

 plate.' 



The reference is obviously very incomplete 

 but it may possibly refer to ' The Scottish 

 Naturalist ' or its present continuation the 

 ' Annals of Scottish Natural History.' South 

 Mist is one of the Islands forming the Outer 

 Hebrides. 



J. Adams. 



Royal College of Science, Dublin. 



