174 ANIMAL RESOURCES AND FISHERIES OF UNITED STATES. 



Other ^haDebone Enanufacture§. 



20. Peepaeation or tortoise-shell.^ 



21. Preparation of fish-scale work. 



22. Preparation of nacre. 



23. Preparation of coral. 



24. Preparation of other hard tissues. 



V. OILS MD GELATINES. 



25. Extraction of whale-oil (with models of try-works, 

 clarifying-vats, etc.). 



Preparation of body-oil. 



Cutting in and stowing 



Leaning and mincing. 



Trying. 



Bailing. 



Cooling. 



Barreling. 



Eeflning. 



Preparation of head-oil. 

 Preparation of §perinaeeti. 



In§triii£uent§ and appliances of renderings ^hale-oil. 



Boarding-knives.'' 



Leaning-knives.^ 



Mincing-liorse and miucing-knives. 



Mincing-tub. 



Minciug -machine. 



Blubber-fork.^ 



' These processes are illustrated in part by the specimens, showing the horn, "whale- 

 bone, and tortoise-shell, in various stages of i)reparation, exhibited in Section D. 

 - Arranged with the knives. 

 ** Arranged with the hooks. 



