63. Plastics 



64. General 



65. Vitamin Pro- 

 ducts 



66. Other Phanaa- 

 ceuticals 



67. Minerals 

 68-72. Blank 



73. Miscellaneous 



OPERATIONS 



74. Refrigeration 



75. Preservation 



76. Grinding 



77. Hydrolysis 



78. Dehydration 



79. Filtering 



80. Chanical Pro- 

 cessing 



81. Centrifuging 



82. Purification 

 Deodorizing 



83. Analysis 



84. Composition 



85 . Nutrition 



86. Extraction 



87. Fractionation 

 88-91. Blank 



Thus it is possible to readily separate specific data as desired from 

 a total of approximately 64O cards. 



In addition to the chemical bibliography, another survey was made to 

 assemble all possible information on the nutrition of fish. Some 240 cards 

 were prepared and coded, primarily under fish food in the "Uses" group. 



Copies of these bibliographies in microfilm will be available at 

 nominal cost on application to the Office of Technical Services, Departmait 

 of Comnerce, Washington 25, D. C. 



THE PREPARATION OF VITAMIN OILS FROM SALMON CANNERY OFFAL 

 BY THE ALKALI DIGESTION PROCESS 



By Charles Butler and David Miyauchi 4/ 



Introduction 



The salmon offal available at Alaska Canneries is one of the potential 

 sources from vrtii ch we may be able to augment our diminishing supplies of 



Chemists, Seattle Technological Laboratory, U. S. Fish and Wildlife Service 



35 



