CONTENTS. 



Editorial Notes 191 



VI. In Memoriam : Albert J. Barr . . . .196 

 VII. Descriptions of Seventeen New Neotropical Birds. 



By W. E. Clyde Todd 198 



VIII. Dr. David Alter, A Nearly Forgotten Pennsylvanian, 

 who was the First Discoverer of Spectrum Analysis. 

 ByW. J. Holland . . ... . . 215 



IX. Two Mummy-labels in the Carnegie Museum. By 



Hamilton Ford Allen . . . . .218 



X. Notes upon the Families and Genera of the Najades. 



By Arnold E. Ortmann . . . . .222 



XI. A Group of Stenomylins Recently Prepared and Ex- 

 hibited in the Carnegie Museum. By O. A. 

 Peterson . ... . . . . . 366 



XII. Tertiary Fish-remains from Spanish Guinea in West 



Africa. By C. R. Eastman .... 370 



