!')() :Mi\KK.\r, \v.\TKi;s. 



Ill nil tlic iron is the i)i-inci])l(' inuTcdicnt. mikI is held 

 in solution by cMilxJuic acid. The Wiilor is clcai' aiul 

 \n\vv when first drawn, hiit soon an ochrooiis scMlimcnt will 

 1)(' deposited on the liotloin ot" the pail, oi- hy l)oilin_i>', 

 which is hydrated [x-roxidc of iron, liheratecl !>y the es- 

 cape of the cai'honic acid. \\y analysis 1 tiiid the inizre- 

 dients of these spring's the same as that i)re\ioiisly pub- 

 lished. Thoiiirh well iinprcirnated as a tonic water, and 

 valiiai)le as such when drank on the premises. Ihc easy 

 separation of the iron renders it unlit for transportation 

 to irreat distances, 'i'hosc sj)rinL:'s are not as cohl nor as 

 reii'ular in the amount of water diseharucd as the sprinir 

 beloiiii'ini:' to this ^roiip pre\iously describetl, yet arc 

 never dry. but aic weaker in wet weather, as the amount 

 of water is iiicreasecl without a perceptibh- increase of 

 mineral matter. 



^fhifrd/ SjiriiKix of Cniicon/. — About one halt" mile 

 from West ('oiicoi'd. near the road lead iiiii' to ( 'oncord 

 ("oriiers, is a siilphated chalybeate spriiiu" on land now 

 owned I)y Harvey Jude\ inc. K>(\. This sprinir has been 

 diiir out, but api)arently not at its head, and now i-iiiis in 

 an a((ueduct to the dwelling;" of W . ^^'. Osgood, where 

 they make some use of it for household pur[)oses as there 

 is no other water easily accessible. 



This si)rin_u- issues from the talcose schist formation, 

 and doubtless derives its sulphurous qualities from the 

 oxidation of iron pyrites in the strata from which it is- 

 sues. It is stronirly impre<rnated with sulphuretted hy- 

 drogen whieh makes the water seem more fully impreg- 

 nated with mineral matter than the analysis shows. It 

 contains 23 grains of mineral matter to the gallon, whieh 

 consists of: 



Peroxide of Iron from Protosulphate, 



Sulphuric Acid, 



Silicic Acid, 



Car])onate of Lime, 



Carbonate of Soda, 



