ANIMAL RESOURCES AND FISHERIES OF UNITED STATES. 177 



Pre^ervatiTe mixtures* 



Carbolic acid. - 



Chloral hydrate. 

 Picric acid. 

 Osmic acid. 



Metallic labels. 

 Parchment labels. 

 Indelible ink, pencils, &c. 



48. Apparatus for preserving and making skeletons. 



Preparation of the bones. 



Macerating- vats. 



Boiling-vats. 



Cleaning and bleaching preparation. 



mounting of the bone.s. 



Scraping-tools. 

 Articuiating-tools. 



49. Apparatus for making oasts, modeling. 

 Materials. 



Clays. 



Plasters. 



Glues. 



Fapier-macM and carton-Pierre, 



Gelatine. 



ParafQne. 



Collodion. 



This apparatus and material is in constant use by the assistants in tho 

 National Museum and the Fish Commission. It ia thought scarcely nec- 

 essary to exhibit it. 



Frames and modeling' tools. 



Molds : 



Of plaster. 

 Of gelatine. 

 Of paper. 

 Of paraffine. 



Bull. N. M. No. 14 12 



