No. in.] im 



with six-sided prisms of the mineral. A machine is now in pro- 

 gress of oonstruction near the bed for the purpose of separating 

 the phosphate from the iron. This prc»oess, it is expected, wll! 

 extract a large amount of pure phosphate from the ore, and will 

 I'elieve the latter from a foreign element that renders it worthless 

 for manufacturing purposes. A successful result of this experi- 

 ment is anticipated with much solicitude.* The phosphate of 

 lime occurs in various localities of the cciunty, and in other com- 

 binations, to what extent and value future development nau&t 

 determine. 



Specimens of marl from the farm of Mr. TafPt, of Crown ToiBt, 

 and the premises of Col. Watson, of Port Kent, have been examin- 

 ed and analysed by Professor Salisburjj with the following results : 



Ko. 3. '^o, 4. 



Msu-l ManjK) Bhttilb. Mftrl VxcA Water Bh«ll«. 



Silicic acid, 59.20 22.60 



Phosphoric acid, 1.15 2.36 



Carbonic acid, 9.93 28.16 



Sulphuric acid, 0.19 0.09 



Lime, 12.78 30.536 



Iron, 3.40 1.16 



Magnesia, 0.5§ 0.3C 



Potassa, 0.45 0.30 



Soda, 0.40 0.07 



Cnlorine, ©.U •.!» 



Organic matter, 11.01 8 44 



99.72 99. 9i 



<* The marine marl, (No. 3, from Port Kent,) is a depodt of 

 groat value as a manure; aside from its being rich in phosphoric 

 acid and lime, it contains most of the otlier inorganic matter * 

 which eiiliTS into tlie food of j)lauLH. No. 4 will nl»o prove 

 valuable t«) tViciso in it^ vicinitv." 



* SiBM nay cxplor»l»on« in Murt«ii, I i.v< ui. • -;«.■ d Ji*llh« 



