116 Transactions.—Miscellaneous. 
sample from the top seam. Although a rich lime it contains small 
quantities of all the ingredients that give hydraulicity with little sand, 
consequently it will make fair mortar for ordinary work in a dry situation. 
It forms one of five beds of limestone that occur at Dowling Bay, Lower 
Harbour, the particulars of which will be given further on. 
No. 19. Fawn colored, incoherent, and absorbent stone from Aparima, 
in Southland. It contains 92 per cent. of carbonate of lime, and 54 per 
cent. of insoluble matter, the precise nature of which is not stated. As the 
chances are that this is not all sand, we may pronounce the sample a good 
lime of its class. 
No. 20, Compact. grey stone from Fews Creek, Lake Wakatipu. 
According to the analysis, this sample contains 41 per cent. of insoluble 
matter not detailed out, but Dr. Hector says that this consists of black 
sand, iron pyrites, and bituminous matter, in which case the quantity of 
sand must be inappreciable. The stone will yield lime suitable for ordinary 
building purposes in the dry atmosphere of the Lake district in which it 
occurs. Another specimen of stone from this locality was analyzed by 
Professor Black, with the resulis given in item No. 16, Table II. It contains 
12} per cent. of sand, so I had no hesitation in putting it in the class of 
poor limes, There is nothing strange in the discrepancy between the two 
analyses. They may both be correct, although the samples had been 
collected within a few feet of each other. Impure limestone deposits all 
over the world have the same character of irregularity in composition 
between the various strata. The difference may therefore be accepted as a 
favourable indication of the quality of the Wakatipu limestone. In all 
probability the intermediate beds will produce strong hydraulic limes. In 
his ** Geology of Otago," Captain Hutton estimates the thickness of the 
caleareous deposits in the vieinity of Fews Creek at 600 feet, and reports 
the existence of similar rock at Afton Burn, on the west side of the lake, and 
at Stoney Creek, on the Upper Shotover. 
No. 21. Bluish compact stone from the Horse Range. This stone 
belongs to the higher class of crystalline limestones, such as partake of the 
character of marbles; indeed, it merges into true marble in many places. 
. The deposit occupies a large area of the western side of the range, near 
Palmerston, in accessible situations for working. With proper treatment 
this stone would yield a lime suitable for the ordinary purposes of the house 
builder. The analysis shows a deficiency of alumina, which indieates slow 
setting, but its ultimate induration is not thereby affected. 
No. 22. Grey shelly limestone from Southland, locality unknown. 
Although the analysis is not complete, it shows this to be a very good 
lime of its class, probably the best hitherto discovered in Southland. 
