3i now ON MIKEKALS FOK THE FAlilS EXHIBITIOJS". 



is especially attractive, while the others are hardly less so from 

 the beautiful contrast of the snow-white calcite with the black 

 lustrous pyrolusite on which it lies. Near these are shewn 

 several forms of limestone and allied minerals suitable for fluxes, 

 lime-making, and the manufacture of cements. 



I need hardly point out the cornelian — as the four specimens 



of this are sure to attract attention by their brilliant red colour 



and high polish ; close to these is a flne group of amethysts, and 



near them several varieties of jasper of different colours, one 



of which is not unlike the jasper of Arthur's Seat, Edinburgh, 



and was found far away from its native place, which no doubt 



was the shore of the Bay of Fundy, in a field in Hants county, 



among other drift materials. Here too are curious crystals of 



smoky quartz, eaten away as it were by chlorite, and nearly 



black quartz from Blomidou, chalcedony also and cacholong. 



Among the lead ores is a specimen in fine crystals from the 



Joggins, and one rich in silver from Victoria County ; a few 



specimens of gold quartz and sand are shewn for the sake of 



having the collection more complete, and finally I may mention 



a piece of plumbago or blacklead, not however of good quality. 



Beyond the cases we have a group of specimens of hard 



plaster, four in number, which have already attracted a good 



deal of attention, and one has been much admired as a material 



which, if it will only maintainits present appearance, will be 



valuable for making mantle-pieces, jambs of fire places, and such 



internal decorations as are not subject to being scratched. One 



sample is in the form of a table top, one, the most admired, is 



in the form of a pedestal, and two others are dressed and 



polished in angular blocks. They differ from each other and 



represent only some of the forms under which the rock is found. 



We then find tolerably large pieces of magnetic iron ore from 



Cornwallis, of hard manganese from Cheverie, copper ore from 



Five Islands. Then we have a complete and instructive set of 



specimens showing the way in which the rich copper is found 



with coaly vegetable remains in sandstone at Tatamagouche. 



A very beautiful incrustation of the rich green carijonate of 



copper adds much to the appearance of some pieces. Very fine 



apocimens of Londonderry iron ore follow, and next we have a 



