526 



NOTES ON THE EXTRACTION 

 OF OIL. 



COCO-NUTS, SOYA-BEANS, AND GROUND-NUTS. 



ON page 79 of the Philippine Journal of 

 Science for January, 1906, Mr. Walker gives 

 the following analyses based on 1,000 nuts, of 

 which 500 were sun-dried and 500 grill-dried. 

 These nuts were taken from a pile of 1,000 

 each, seashore and inland nuts, after they had 

 been lying for a month to dry, and the resul- 

 tant weight of each 500 was finally multiplied 

 by two to give approximately the weight of 

 the whole, when it worked out as under. 

 Although already printed in the Manure 

 section, we repeat this table to show the oil 

 and water content of copra in the Philippines 

 or elsewhere, which we can reasonably reckon on 

 as having been carefully and adequately dried. 



Taking the nuts first, their weights and pro- 

 portions worked out as follows : 



1. Weight of i ,000 nuts 



2. husks only 



3. nuts, minus husks 



4. meat and shell 



only ... 



5. milk 



6. shell (dry) 



7. meat 



Seashore Nuts 

 Kilos. Per cent. 



2,368 

 897 



1,466 

 929 



537 

 282 



647 



lOO'O 



38-0 



62*0 



Inland Nuts 

 Kilos. Per cent. 



2,285 

 703 



227 



27-4 



1,582 



979 



603 

 291 



688 



lOO'O 



30-8 



69-2 



26-4 

 127 

 30-1 



It will thus be seen that No. i = 2 and 3,- 

 and No. 3 4 and 5, and also 5, 6, 7. 



