Composition and Value of Guano. 211 



Table 10. — Saldanha Bay Guano.* 



(Names of Ships unknown.) 



Number of ) 





74 



75 



7 





77 



11 





79 



80 



81 



Specimen. . > j 

























Water 



19* S6 



15 27 



19-73 



26 



•64 



17 -92 



7 



58 



18*09 



n ■ 4.0 



12-22 



Orgauic Mat-] 

























ter and Salts > 



14 -00 



23-23 



15-59 



17 



•80 



13-28 



21 



69 



15-51 



13-29 



19-64 



of Ammonia J 



























3-63 



3-07 



1-12 





•89 



7-92 





68 



•99 



2-26 



•99 



Earthy Phos- ) 



55 -13 



49-01 



55-00 



49 



•24 



58-36 



56 



99 



58-76 



60-96 



54-82 





















Ammonia . . . . 



1-16 



2-49 



1-48 





•94 



1-81 



2 



20 



1-88 



•96 



2- 18 



We have here arrived at the last step in the series. In this 

 kind of guano the ammonia becomes comparatively insignificant 

 in quantity, and as a natural consequence the proportion of earthy 

 phosphate attains its maximum, 

 In the 9 specimens described — 



The highest per centage of ammonia is . .2*49 



The lowest „ „ -94 



The mean of the specimens 1*68 



Of the phosphate of lime — 



The highest number is 60*96 



The lowest ,, 49-01 



The mean „ o5'40 



The following analvses of Dr. Ure and Mr. Teschemacher bear 

 out my own results : — 



Table 11. — Saldanha Bay Guano. 



Number of Specimen 



82 



83 



84 



85 , 



86 





88 



89 



90 



91 



92 















: 



d 

















B 







i 



ft 











Name of the Ship . . 



$ 



i-E 

 ~- 



o 

 ft 



£ 



ai . 



til 



a 

 ■ : 

 £5 



i 



o 

 O 

 2 



Dill.,, 



2nd Sam 



| 



£ 



- .= 

 < ~ 



1 

 f 



>> 



1 

 a 



Water 



33 -0 



32 0 



32-0 



28-0 | 



25-0 



19-0 





23-0 



32-0 



1S-0 



27-0 



Organic Matter and i 

 Salts of Ammonia / 



6*0 



11-5 



12-5 



13-0 



10-5 



19-0 



17-5 



10-5 



10*7 



19-0 



14-5 



Sand 



1-5 



•5 



1-0 



4 



•3 



2-5 





.-, 



•5 



•5 



1-0 



Earthy Phosphates. . 



57-0 



53*5 



51-0 



56*0 



62-5 



61*0 



59-5 



63-5 



54*5 



61'0 



51*5 





























1*75 



2-00 



l-50l 



1*50 



1-50 



2-10 



1-00 



1-25 



1'50 



0 2 









Tne highest per centage of ammonia is . .2-10 



Tne lowest (omitting 86) 1*25 



The mean of 9 specimens (also omitting 86) . 1*56 



For some detailed analvses of this rarietv of Guano, see Appendix. 



p 2 



