Scientific Intelligem 

 \n possehsing the nc 



lias, in till' fiiNt pli '0. coMM itt'.l tho crvstaK of iii.ilfxcolite into tl'i 

 " stoloiibf ueU the cry^tiils were (li\ hlc.l by cle.n at,a', and eiM,lu 

 1o ^iieh im extent that, in the state of the "caii.il ^iv-toni, ' the 

 became reduced to mere skeletons.* KespectiiiLr tin htadod diai 

 acter of the branching forms, we are strongly iiu lined to ljelie\ 

 that It has resulted from the cleavage which" tratisvei^ely cut- tin 

 ])risms: obviously the erosion would be deepest where it Tvi 

 present. 



In no instance ha\e we detected any traces of the "nummulin 

 layer" on the grains- a deficiency we attribute to their componcn 

 niiiieial, coccolite, not assuming the fine asbestiform ^triidnr 

 which so emhiently distinguisheb serpentine in its chan^t iiit 

 chrysotiJe. There is often, however, a thin whitish granular coa 

 in\estino; the grains, sometimes so com))act as to remain aftcn the 

 ha\i' been accidentally detached from the matiix. 



Another specimen, vvhich is from Amity, Xew York, uJiiM-t^o 

 a similar calcareous matrix, holding spinel, chondi.Mlit^ , scixmii. 

 a micacoous mineral, and malacolite One ot tin . i -t iK "i M'in< 



^loiuus and -canal sjstcn,"^ IV ,li-pl i\..l ill tiu Vk i -]• ""t" 

 feo that the description u( h,i\^ r,\n, ,,} th i-i would ln^t t'^ ''^ 

 repeated if we described tlio^c Tuxh-i c-onMdi ration . .iinUureit 

 necessary to represent the latter our representations would l>e 

 clohi^ fac sl/nlles of the figures -dieady refiTred to vdiich D.nvson. 

 Carpenter, and Rupert Jones,' Inue published in their rcspectne 



All the calcite of the specimen equally shows the same -eo70- 

 onul structures ; an<l that they have originated from the wa^o ot 

 crystals of malacolite. One example consists of a prismatic or 

 ^^*J^^^'^'ybehjpothetically.sup,jested th,,t, in the final stage the en ''t d- ^^^^^ 

 23 magnesia Tv" 7^«""»tTarf)onTacr'to'haracted"afth?^ "o'^^^'^^-'^^i 

 omSu^eift omf mlneral'^^ ^^'"^ Mho.c acid and m t^"* ^^'''^' '•^''^^^^.JpU aSr 



