Material has been sent for study to Dr. Paul Meyer of Naples, 

 to Professor Goette of Strasburg, to Baron Selys-Longchamps, and 

 to Dr. Richard Semon. The Marquis of Doria has kindly under- 

 taken a revision of our collection of Bats. Exchanges have been 

 made with the Museum of the Academy of Sciences of St. Pe- 

 tersburg, through Prof. A. Strauch; the Museo Civico of Milan, 

 through M. Belloti ; the Jardin des Plantes, through Prof. 

 L. Vaillant ; the K. K. Hofnaturalien Cabinet (Dr. F. Stein- 

 dachner) ; the British Museum (Dr. A. Giinther) ; the Univer- 

 sity Museum of Christiana (Professor Collet) ; the University 

 Museum of Berlin (Professor Mbbius) ; Professor Ehlers of Got- 

 tingen ; Professor Liitken of the University Museum of Copen- 

 hagen ; Dr. E. Ramsay of the Australian Museum of New South 

 Wales at Sidney; C. W. De Vis of the Queensland Museum at 

 Brisbane ; and with the National Museum at Washington. A few 

 minor exchanges are also mentioned in the special reports of the 

 Museum Assistants. 



Of the Blake Collections, those in the hands of Professor Ver- 

 rill have not yet been returned. Professor Perrier and Professor 

 Milne-Edwards have retained a part of the Blake Collections, 

 while working up the collections of the " Talisman." Dr. P. H. 

 Carpenter has continued his work on the Report of the " Blake " 

 Comatulse ; the proofs of several of the plates to accompany his 

 Report have been received. 



Professor Huxley has returned the Spirula dredged by the 

 "Blake" off Grenada, which was sent him for comparison while 

 writing his Monograph on the species of Spirulse collected by 

 the " Challenger." 



Messrs. Scott and Osborn have returned the larger part of 

 the second and third instalments of the Western Vertebrates 

 sent them for study. This material has greatly increased in 

 value, not only from the work they have done upon it in the way 

 of cleaning and repairing the specimens, but also from the care^. 

 ful study they have bestowed upon the part of the collections 

 of Western fossils which have been placed in their hands. They 

 have sent the manuscript and drawings for a second Bulletin 

 on the Fossil Mammals from the White River and Loup Fork 

 Formations, which is now in press. 



A number of exceptionally fine or interesting Crinoids have 

 been sent to Messrs. Wachsmuth and Springer for study, to assist 



