176 ANIMAL RESOURCES AND FISHERIES OF UNITED STATES. 



VII. MANUFACTURE OF FERTILIZERS. 



45. Preparation of guajs'o. 



inodel or lo<<ili-$;^iaano vvork«. 



Grinders and i)ulv'erizers. 

 Mixers. 



25822. Model of <?iiano-inixer. Patented April 27, 1867. Poole and Hunt, 

 Baltimore, Md. 

 This mixer is emjiloyed in tbo fisli-guano works for tlio purpose of 

 thoroughly mixinj^ the fish-scrap with the mineral phosphates and sul- 

 phuric acid. 



Guano in its various stages, with its ingredients, South Carolina phos- 

 phates, Navassa phosphates, scrap (crude and dried), sulphuric acid, 

 kainite, screened and unscreened guano, and sea-weed used in prepara- 

 tion : a full series of these is exhibited in the case of Guanos. 



VIII. LIMES. 



4G. Burning of leme. 

 ITIodel^ or Kiltie f&v hurninp; shells. 



IX. PRESERVATION OF THE ANIMAL FOR SCIENTIFIC 



USES. 



47. APPAJIATUS FOR MAKING AND PRESERVING .\XCOHOLIC SPECI- 

 MENS. 



Tank» and Jars. 



Ajjassiz eoUectiiifr-tank. 



Army collect inju-tauk. 



Mnsenni storaj;:e-tai k, Agassiz model. 



Anatomical jars. 



Sclt-sealiug jars used iu collecting. 



Vials. 



SyrDn?fr»» thr itajocliBBs. 



InifladaF>a(' ha^N. 



Preservative mi \f tires. 



Alcoliol. 

 Glycerine. 



