CONTENTS. 



For Announcements, Reports, etc., see General Index. 



PAGE 



Alexander, Charles P. New or little-known craneflies 

 from the United States and Canada. Tipulidse, Diptera 

 (Plates XXV-XXVII) 579 



Andrews, Roy Chapman. Notice of a rare ziphioid whale, 

 Mesoplodon densirostris, on the New Jersey Coast 

 (Plates XVI-XVIII) 437 



Banks, Nathan. New neuropteroid insects, native and exotic 



(Plate XXVIII) 608 



Barringer, Daniel Moreau. Further notes on Meteor 



Crater, Arizona (Plates XXI-XXIII) 556 



Boyer, Charles S. A new diatom (Plate X) 219 



Brown, Amos P., and Henry A. Pilsbry. Fresh-water mol- 



lusks of the Oligocene of Antigua (Plate IX) 209 



Cockerell, T. D. a. Miocene fossil insects 634 



Crawley, Howard. Two new Sarcosporidia 214 



The evolution of Sarcocystis muris in the intestinal cells 

 of the mouse (Plate XV) 432 



Fow^LER, Henry W. Fishes from the Rupununi River, British 



Guiana 229 



Description of a new Blenny from New Jersey, with notes 



on other fishes from the Middle Atlantic States 342 



Fishes collected by the Peary Relief Expedition of 1899 359 



Fox, Henry. Data on the orthopteran faunistics of eastern 



Pennsylvania and southern New Jersey 441 



Heath, Harold. Certain features of Solenogastre develop- 

 ment 535 



Keeley, Frank J. Notes on some igneous rocks at Ogunguit, 



Maine, and Pigeon Cove, Mass 3 



McIndoo, N. E. The olfactory sense of Hymenoptera (Plates 



XI, XII) 294 



The scent-producing organs of the honey-bee (Plates 

 XIX, XX) 542 



