BUILDING MATERIALS. 85 
the Haverhill and Lisbon stones. Because the mortar is not a pure 
white it has fallen into disuse, and the Maine or Vermont limes em- 
ployed instead for finishing. Our stone would furnish good material for 
three fourths of the plastering needed for honses, or it may be used for 
agricultural purposes. As it is inexhaustible, there is no reason why the 
farmers should not order it in large quantities. 
At Lime pond, in Columbia, the marl has been used to some extent for the manufac- 
ture of quick lime. This article is fully equal to the best imported variety; but the 
supply is not inexhaustible. 
Limestone occurs in many other towns in New Hampshire, but in a comparatively 
impure condition. It occurs in Plainfield, Cornish, Claremont, Clarkesville, Stewarts- 
town, Amherst, Warner, Wakefield. I append a few analyses of some of these rocks, 
by Dr. Jackson: 
a ts fe le Tee 3 
¢ 2 of Q :|e8 : & 
2 (28/32) 86 a| 3 
is Bg | 2#6| Be) 46/8] 3 a3 
@g|8e/82)/csileag/815} 8 
of | 2 ro el |/2 a 3) og 
=o] a5] 4 BSl/osa | RE] EI s on 
a |o JO | |O {O18 ae 
Haverhill—first quality fi || GOS! | ascssinicedel aicisiasy Or2 |eweele eee /55-7 |= 100 
Haverhill—second quality.......e.cesecseeneeeeeeneee 3-80] 90.66]. ..0..|seeeee 5+ 54] ++] 200+15%.03|=100 
Thomas Priest, Lisbon.....--ssserescrereeeeceensees 8.2 | 90-18]. ..00-fesaees I : 100 
David Priest, Lisbon. ... 1... sseeccereeseeensesseeees E556 | 8206) |e cccorcees| ecsiveoes 2.8 [eeee[eeee [45-6 
Uriah Oakes, Lisbon—flux.......sceceeseesaseeessens| 20 | B80. [eceees lessee 2 |rse-]eee-]43-9 |=r00 
Ee ee ee te ee fl peiand agains 2.60]...+...+|40.35|==100 
Eyme—dark colorediieccsssisavesscsacesceesseawvel 28 | 8996 |seceslosovas 1.2 | 2 |..--147-04|=100 
Orford .csmnsicscesaiedsaemonsecseiersees sen, 64 90 frozese »-/50.66/=110.4 
Amherst ss ccacucicciesersscrgeee eset Gees! er | Se2) [ees .»142.32|==98.6 
‘Warner—white crystalline ..........eeeceueeeereereee 33 B6x4. ween Bee ey Roe + ++[20,8/32.74|=100.2 
Warner—gray siliceous ...... 020. .cseeeee cnet een eee 72 10 13 Bue ||eeseree sexeleass| S262 =98.2 
Cornish—Judge Jackson ...... ccc cseeceeecrcenssecees 3r | 58.6 1.6 FES | a siniscce seeebesee]32-98|—=99.2 
(Saini 
Tunen Durie: Vitissessssctisiesciersyerecoyn winie diwiwintecnserainielaterEaasecs ies 40.6 47.6 ET! “Vesainioiece =99.2 
PAN stesescsticierose sel bai wfaratteaverstate sates lara iwievetn’sieratcrwieveiorsie 25 23.8 | 46.6 «+ [13.39]=98.3 
Cornish—Johnson’s Quarry ....ccceceecerveecereeceee 59-6 | 22.6 | 13.8 -+|15.72|=99.8 
Brick Cray. 
A few facts have been acquired relative to the manufacture of bricks in the state. 
They relate to the largest establishments. 
The extensive deposit of clay in Pembroke, Allenstown, and Hooksett, has been 
described on page 94 of Part III. The brick-makers find a slight difference between 
the gray and blue clays,—the latter requiring more sand to be mixed with it, and 
