No. 112.] 



801 



Oavbonafee lime, . ■ • 



Silica, .' 



Alumina and Iron, 



Magnesia, 



Soda, 



Potassa, 



Chlorine, 



Sulphuric acid, . . . . 

 Phosphoric acid, . . . 



Plambago, 



Orgardo matter, • • • • 



'5' *" -A "^ 



s 



J^ 



66.59 

 16.20 

 6.80 

 2.80 

 2.84 

 1.86 

 0.14 

 2.40 

 0.13 

 0.20 

 trace. 



99.96 



. o 



cc o 



• o 

 c c 



^3 





83.07 



11.57 

 3.J3 

 0.23 



trace. 



trace. 

 0.10 

 0.20 

 0.07 

 0.19 



trace. 



99.46 



msMOft 



4J ^-6 



O fc^ «?' lO 



6' 



87.10 

 • 3.85 

 6.05 

 ' 0.85 

 0.S5 

 O.50 

 0.28 

 0.44 

 0.20 



^0.32 



• O b en 



99.92 



70.31 

 21.39 

 3.61 

 1.09 

 trace. 

 0.80 

 0.31 

 0.69 

 0.20 



■ « • • 



1.40 







99.80 



80.92 



10.21 

 4.69 

 0.58 



trace. 



trace. 



trace. 

 0.40 

 0.11 

 1.69 

 0.90 



99.50 



Prof. Salisbury remarks in relation to these materials, " No. 

 208 is almost a hydraulic cement. It contains a large percentage 

 of lime, also a respectable quantity of magnesia, and an unu- 

 sually large percentage of soda, potassa, chlorine, sulphuric 

 and phos^jhoric acids, for a rock of this kind. On this account, 

 it is most admirably adapted as a manure for agricultural purpo- 

 ses." This valuable deposit is situated near the head waters of 

 Putnam's creek, in Schroon, upon the premises of the Messrs. 

 Treadway. 



" The «• grey marble," of Chesterfield, No. 264, and No. 44, rank 

 next in agricultural value. They are also unusually valuable 

 for this purpose, as will be seen by referring to their composition. 

 The marble will also make an excellent lime for masonry. Nos. 

 332 and 190, although less valuable than the others, on account 

 of the absence of tho alkalies, yet they are equal in ricliness, to 

 the majority of limestones. They are both quite well adapted 

 for the manufacture of lime for masonry." 



PKAT. 



Peat^ or bog earth, exists in immense deposits in various sec- 

 tions of the county, and is adequate alono to the fertilizing of 

 every acre of arable land within its borders. The fact that this 

 substince is attracting tlio general attention of farmers, and is 

 becoming extensively used, furnishes most satisfactory evidence 



