500 



SCIENCE. 



[N. S. Vol. XVIII. No. 459. 



systems of industrial organization. Robert E. 

 Moritz treats of ' The Sherman Principle in 

 Rhetoric and its Restrictions,' and Elizabeth 

 M. Howe of ' Educational Endowments in 

 the South,' showing how small they are, the 

 reasons for this condition and some of the 

 edueationad needs of the southern states. J. 

 A. Fleming presents the iifth of his series of 

 papers on ' Hertzian Wave Wireless Teleg- 

 raphy.' The number contains the index to 

 Volume LXIII. 



The American Naturalist for August con- 

 tains the second paper by A. W. Grabau on 

 ' Studies of the Gastropoda ' and is devoted to 

 Fulgur and Syncotypus, comprising an ac- 

 count of their development, the succession of 

 their species in time and genetic affinities. 

 Arthur D. Howard has a paper ' On the Struc- 

 ture of the Outer Segments of the Rods in the 

 Retina of Vertebrates ' and Edwin W. Doran 

 discusses the ' Vernacular Names of Animals ' 

 and propounds a set of rules for the system- 

 atic writing of compound names. 



A MONTHLY Journal de chimie et physique 

 has been started at Geneva under the editor- 

 ship of Professor P. A. Guye. 



DIdGVSSWN AND CORRESPONDENCE. 



THE FIFTH SATELLITE OP JUPITER. 



To THE Editor of Science : Will you permit 

 me to call attention to a misstatement in. 

 Science^ on page 376, second column, un- 

 doubtedly unintentional, and at the same time 

 easy of correction. The observations of the 

 fifth satellite of Jupiter, made in the De- 

 partment of Astronomy and Astrophysics of 

 the University of Chicago, during the past 

 five years, are stated to have been the only 

 ones obtained during that period. As ex- 

 ceptions to this record, measures of the fifth 

 satellite have been made by Doctor Aitken, at 

 this Observatory, in 1898, published in A. J. 

 No. 436; and in 1900 and 1902, published in 

 L. O. Bull. 28; and a series in 1903, not yet 

 published. Such an oversight can easily occur 

 in making up an extensive report, and the 

 credit of the excellent work done at the 



Yerkes Observatory is in no way diminished 

 by the full statement of the facts. 



R. H. Tucker. 

 Lick Obseuvatoby, 



U>'IVEESITY OF CaLIFOKNIA. 



I owe an apology to Professor Aitken for 

 the remark regarding Jupiter's fifth satellite 

 in President Harper's report. When, at Presi- 

 dent Harper's request, I prepared the state- 

 ment on the research work of the department 

 of Astronomy and Astrophysics, I understood 

 that the satellite had not been observed else- 

 where. There was of course no intention on 

 my part to omit mention of the important 

 work of Professor Aitken with the great tele- 

 scope of the Lick Observatory. 



George E. Hale. 



investigations in progress at the university 

 of chicago. 



The article in your issue of September 18, 

 under the above title, exhibits an attitude 

 altogether too prevalent among those in au- 

 thority in this country, and I think justly de- 

 serves criticism. It seems to be assumed that 

 if a lot of investigations with high-sounding 

 titles are being carried on at Chicago Uni- 

 versity, that institution is correspondingly 

 great as a center of research; and that it is 

 a matter of comparative indifference who is 

 doing the work. " I think it best under all 

 the circumstances not to mention in this state- 

 ment the specific names of persons thus en- 

 gaged. In most cases, however, the mention 

 of the subject itself will carry with it a knowl- 

 edge of the person engaged in the work." So 

 it will, to those who happen to know, and to 

 whom the statement is unnecessary. 



There are plenty of ' researches ' reported 

 in Science and elsewhere, which are mere air- 

 bubbles, containing nothing. We know very 

 well that most of the work done at the Uni- 

 versity of Chicago is by no means of this 

 character; that the university is, indeed, a 

 great research center, an ever-flowing foun- 

 tain of knowledge. But this is due to the 

 men who are there, and to describe the work 

 without mention of the workers is as though 

 some theatrical company were to proudly an- 



