REPORT OF ASSISTANT SECRETARY. 29 



A small set of Holothuriaiis has been sent to the Zoological Museum, 

 Copeuliageu, Denmark (Dr. Christopher Liitken, director). 



Helmhitholof/y. — Microscopic slides of parasitic worms have been 

 sent to Prof. E. Blanchard, Paris, France, in exchange for material 

 promised. 



From Dr. A. Looss, Zoological Institute, Leipsic, (lermany, have 

 been received specimens of parasitic worms in exchange for material 

 previously sent. 



M. Stossich, Trieste, Austria, has transmitted parasitic worms, for 

 which similar material has been returned. 



From the University of Toronto, Toronto, Canada, through Prof. R. 

 Ramsay Vv right, have been received specimens of Uchinorhynchus capi- 

 taUiSj for which material will be sent in return. 



Parasitic worms have been sent to Dr. O. von Liiistow, Gottingen, 

 Germany. 



Conqjarative anatomy. — Dr. H. Gadow, Cambridge, England, has 

 transmitted a specimen each of Goatsucker {Podargus); Swift, Gypselus 

 apiiH; Goatsucker {Caprimnlgus), and Honey Creeper {CerthioJa). 



Paleontology. — A collection of characteristic North American fossil 

 invertebrates and plants from the more important geologic terraiies 

 have been sent to the department of mines and agriculture, Sydney, 

 New South Wales, in return for material already received. 



The University of Caen, Caen, France, has transmitted, through Dr. 

 A. Bigot, a fine plaster cast of Pclagosaurus typiis. A collection of 

 invertebrate fossils has been sent in return. 



Diatomaceous earth has been received from Mr. R. Getschmann, 

 Rixdorf, near Berlin, Germany, for which similar material has been 

 returned. 



Casts of vertebrate fossils have been received from the La Plata Mu- 

 seum, La Plata, Argentina (Dr. Francisco P. Moreno, director). Birds' 

 skins have been sent in exchange. 



From the Museum of Natural History, Paris, France (Dr. A. ^lilne- 

 Edwards, director), have been received twenty-two casts of vertebrate 

 fossils. A i^artial exchange has been sent. 



Plants. — From the Museum of Natural History, Vienna, Austria (Dr. 

 Aristides Brezina, director), have been received one hundred plants. 

 An equivalent will be forwarded. 



One thousand one hundred and thirty-six herbarium specimens of 

 American plants have been sent to Lieut. Col. G. King, for the Royal 

 Botanic Garden at Calcutta, India. 



PreMsforic anthropology. — T\yo hundred archaeological objects, also 

 a collection of arrow and si^ear heads, have been sent to Mr. S. G. 

 Hewlett, Eastbourne, Sussex, England, in return for material already 

 received. 



Archaeological objects have been sent to Prof. H. H. Giglioli, director. 

 Zoological Museum, Florence, Italy, in continuation of exchanges. 



