22 THE AMERICAN MUSEUM JOURNAL 



Columbia, North Carolina and Oregon. The sessions were well 

 attended, and the members were enthusiastic over the sound 

 financial condition and the bright prospects of the Association. 



The Twenty- third Congress of the American Ornithologists' 

 Union was held in the Museum, November 13 to 16, under the 

 presidency of Mr. Charles F. Batchelder. There are now about 

 nine himdred members of the Union, and the attendance at this 

 Congress was greater than at any previous session. Many 

 valuable papers were read, and a feature of the convention was 

 an informal reception in the Museum. 



AMERICAN MUSEUM BULLETIN, VOLUME XXI. 



During the year 1905 the twenty-first volume of the Bulletix of 

 the Museum has been published. The articles are also published 

 separately and may be obtained at cost prices from the Librarian. 

 The table of contents of the volume is as follows: 

 Art. I. — An Interpretation of the Slave-making Instincts in 



Ants. By William Morton Wheeler i 



II. — Notice of a New Crinoid and a New Mollusk from the 

 Portage Rocks of New York. By R. P. Whit- 

 field. (Plates I-IV) 17 



III. — Notice of Two New Genera of Mammals from the 



Oligocene of South Dakota. By W. D. Matthew. 21 

 IV. — Notes on the Devonian "Placoderm," Dinichthys in- 



termedius Newb. By L. Hussakof. (Plate V) . . . 27 

 V. — On the Ancient Inscribed Sumerian (Babylonian) Axe- 

 Head from the Morgan Collection in the American 

 Museum of Natural History. By George Fred- 

 erick KuNZ. (Plate VI) 37 



VI. — An Ancient Babylonian Axe-Head. By Prof. J. 

 Dyneley Prince and Dr. Robert Lau. (Plate 



VI)...... 49 



VII. — A Contribution to the Life History of the American 

 Flamingo (Phaenicopterus ruber) , with Remarks upon 



Specimens. By Frank M. Chapman 53 



VIII. — The Ants of the Bahamas, with a List of the Known 

 West Indian Species. By William Morton 

 Wheeler. (Plate VII) 79 



