ANIMAL RESOURCES AND FISHERIES OP UNITED STATES. 177 



Preservative cssixtures. 



Carbolic acid. 

 Chloral hydrate. 

 Picric acid. 

 Osmic acid. 



Iiafoel!«$. 



Metallic labels. 

 Parcliment labels. 

 Indelible ink, x^encils, &c. 



48. Apparatus for preserving and making skeletons. 



Preparation of the bones. 



Macerating- vats. 



Boiling-vats. 



Cleaning and bleaching preparation. 



Mounting^ of the hones. 



Scraping-tools. 

 Articulating-tools. 



49. Apparatus for mailing casts, modeling. 

 materials. 



Clays. 



Plasters. 



Glues. 



Papier-mache and carton-jpierre. 



Gelatine. 



Paraffine. 



Collodion. 



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

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

 essary to exhibit it. 



Frames and modeling tools. 



molds : 



Of plaster. 

 Of gelatine. 

 Of paper. 

 Of paraffine. 



Bull. N. M. Ko. 14 12 



