204 Scientific Intelligence. 



the following papers: — A. Russo: Aumento dei granuli proto- 

 plasraatici nell' oocite delle Coniglie iniettate con Lecitina, loro 

 diminuzione nelle Coniglie digiunanti e loro natura lipoide e mito- 

 condriale ; G. Kautzsch : Studien tiber Entwicklungsanomalien 

 bei Ascaris ; G. Arnold : The role of the chondriosomes in the 

 cells of the guinea pig's pancreas ; O. Koehler : tjber die Abhan- 

 gjgkeit der Kernplasmarelatiou von der Temperatur und vom 

 Reifezustand der Eier ; H. Kupelwieser : Weitere Untersuchun- 

 gen iiber Entwicklungserregung durch stammfremde Spermien ; 

 J. Schmalz: Zur Kenntnis der Spermatogenese der Ostracoden ; 

 H. Erhard : Studien iiber Nervenzellen ; H. Hoven : Contribu- 

 tion a l'etude du fonctionnement des cellules glandulaires ; A. 

 Pensa : Osservazioni di morfologia e biologia cellulare nei vege- 

 tali ; J. P. Munson : A comparative study of the structure and 

 origin of the yolk nucleus. u. l. w. 



Obituary. 



Dr. Lewis Swift, the astronomer, died on January 5 at Mar- 

 athon, N. Y., at the age of nearly ninety-three years. Born in 

 1820, at Clarkson, N. Y., he early went into business but later 

 became interested in astronomy and by his great industry and 

 acute powers of observation he discovered a remarkable number 

 of comets and nebulae. His work brought him honor and reward 

 in medals from many scientific bodies at home and abroad. He 

 was made Director of the Warner Observatory at Rochester in 

 1882, and later of the Lowe Observatory on Echo Mountain, 

 California. 



Dr. George A. Koenig, Professor of Chemistry in the Mich- 

 igan School of Mines, died in Philadelphia on January 14 at the 

 age of sixty-eight years. He was much interested in mineralogy 

 and contributed many papers on mineralogical subjects including 

 the description of several new species. 



Dr. Ernst von Koken, Professor of Mineralogy and Geology 

 in the LTniversity of Tubingen, died after a long illness on Novem- 

 ber 24 at the age of fifty-two years. In his death geology, and 

 more especially paleontology, has lost one of its best students and 

 teachers. Since 1899 he had been one of the three editors of 

 the Neues Jahrbuch fur Mineralogie und Palaontologie, and was 

 an honorary member of the Paleontological Society in this coun- 

 try. He is best known to Americans through his works : " Die 

 Vorwelt und ihre Entwicklungsgeschichte," 1893 ; " Die Leitfos- 

 silien," 1896, and " Indisches Perm und die permische Eiszeit," 

 1907. 



Mr. S. A. Saunders, the English astronomer, noted for his work 

 on the moon, died on December 8 at the age of sixty years. 



