52 ANIMAL EESOUECES OF THE UNITED STATES. 



21. PREPARATION" OF FISH-SCALB WORK. 



22. PREPARATION^ OF NACRE. 



23. PREPARATIOIST OF CORAL. 



24. PREPARATION OF OTHER HARD TISSUES 



V. OILS AND GELATINES. 



25. EXTRACTION OF WHALE OIL, (WITH MODELS OF TRY- 



WORKS, CLARIFYING- VATS, &c.) 

 a. Preparation of body-oil: 



Cutting in and stowing. 



Leaning and mincing. 



Trying. 



Bailing. 



Cooling. 



Barreling. 



Refining. 

 6. Preparation of head-oil. 

 c. Preparation of spermaceti. 

 (?. lustrnments and appliances of rendering whale oil : 



Boarding- knives. 



Leaning-knives. 



Mincing-horse and mincing-knives. 



Mincing tnb. 



Mincing-machine. 



Blubber-fork. 



Try -pots. 



Fire-pike. 



Stirring-pole. 



Scrap-hopper. 



Skimmer. 



Bailer. 



Cooler. 



Deck-pot. L 



Casks. 



26. EXTRACTION OF OTHER MAMMAL OILS, 



27. EXT li ACTION OF BIRD AND REPTILE OILS. 



28. EXTRACTION OF FISH-OILS, (WITH MODELS OP BOILERS, 



PRESSES, CLARIFYING- VATS, &c.) 



29. EXTRACTION OF GLUE, GELATINE, AND ISINGLASS. 



