﻿FISH-SCRAP FERTILIZER INDUSTRY OF ATLANTIC COAST. 



35 



Those obtained may be regarded as typical. The samples were 

 gotten from open heaps of scrap in the storage house, or from bags 

 by means of samplers, or by opening the bags. They were shipped 

 in canvas sample sacks. Before analysis, the entire sample was 

 ground to a powder that would pass a sieve of 16 apertures per 

 linear inch. 



METHODS OF ANALYSIS. 



Samples of 2 grams were dried to constant weight in an electric 

 oven at a temperature of about 100° C. The loss in weight was 

 recorded as moisture. In this connection it should be said that it 

 is believed that possibly some oil also was lost in this operation. Oil 

 was determined by extracting with ether a 2-gram sample, previously 

 dried to constant weight. Following the extraction, the sample 

 again was dried to constant weight and the loss was taken as oils. 

 For the extraction a Soxhlet apparatus was employed. In the de- 

 termination of nitrogen the official, modified Gunning method was 

 applied, and in that of phosphoric acid the official gravimetric 

 method was used. The analyses were made by E. G. Parker and 

 J. K. Lindemuth, whose results are recorded in the subjoined 

 table. The eleventh analysis is reported in this table merely for 

 convenience. It is the analysis of pulverized crab shells used as a 

 filler for mixed fertilizers. The particular adaptability of this ma- 

 terial for that purpose is brought out by the analysis. 



Table XII. — Analysis of fish scrap, by E. G. Parker and J. R. Lindemuth. 



No. 



of 



sample. 



Location. 



Description. 



Nitrogen. 



Phos- 

 phoric 



acid 

 (P2O5). 



Moisture. 



Oils. 



1 



2 



Kilmarnock, Va 



Taft, Va 



From Eubanks Tankard Co. 

 Dry scrap (from 6 sacks). 



From Taft Fish Co. Dry 

 scrap (sample of 525 tons). 



From Carter's Creek Fish 

 Guano Co. Dry scrap, 

 dried in hot air and steam 

 driers (from one sack). Fall 

 product. 



From Atlantic Fish & Oil Co. 

 Dry scrap, ground (from 3 

 sacks). 



From Dennis Fish & Oil Co. 

 Dust from grinders. 



From Beaufort Fish-scrap & 

 Oil Co. Dry scrap, hy- 

 draulic presses. Sample 

 from heap. 



R. W. Taylor. Dry scrap 

 from open heap. 



From Chas. S.Wallace. Scrap, 

 dry, from hydraulic presses. 



From C. P. Dey. Ground 

 scrap, sun dried, hydraulic 

 presses . Sample from heap . 



From C. P. Dey. Scrap, dry, 

 ground, hydraulic presses. 

 Sample from heap. 



Per cent. 

 8.93 



8.96 



7.70 



9.29 



8.80 

 8.82 



8.49 

 7.76 

 7.81 



8.29 



Per cent. 

 6.17 



7.75 



5.22 



6.12 



5.21 

 5.95 



5.95 

 9.65 

 5.S5 



9.00 



Per cent. 

 6.48 



6.18 



11.68 



7.86 



7.17 

 6.13 



9.12 

 8.15 

 7.46 



7.00 



Per cent. 

 5.91 



6.81 



3 





6.62 



4 

 5 



Cape Charles, Va 



do 



5.38 

 7.55 



6 



7 

 8 



Beaufort, N. C 



Morehead City, N. C. . . 

 do 



8.57 



8.23 

 7.56 



9 

 10 



Lenoxville, N. C 



do 



7.89 

 5.40 











9.13 



7.25 





6.99 





Crisfield, Md 



From L. E. P. Dennis & Son. 

 Ground crab shells, used as 

 filler. 







11 



3.82 



4.55 



6.95 



2.11 









