550 
Proceedings of the Royal Society 
1. Chapters on the Mineralogy of Scotland. Chapter III. 
The Garnets. By Professor Heddle. 
In this third chapter Dr Heddle submits the results of his 
analyses of garnets from thirteen localities. 
Notwithstanding the great frequency of the occurrence of the 
mineral, it is generally so largely contaminated with quartz that 
he was unable to procure, from many localities, specimens fit for 
examination. 
Three varieties of garnet new to Scotland — one of these being 
altogether new — have, however, been the reward of the present 
investigation. 
On a hill lying north of Balmoral, — Creag Mohr, — two of the new 
varieties were found, both in limestone. 
The first, the rarer, was the water garnet , or colourless garnet ; 
he second was the grossular, or gooseberry garnet, hitherto found 
only in perfection on the Wilni river in Siberia. 
The dnnamonstone of Glen Gairn has next been analysed. This is 
finer in colour than the Ceylon mineral, but so flawed as to be use- 
less for purposes of jewellery. 
Not so the pyrope of Elie — the “ Elie rubies,” as they used to be 
termed. Dr Heddle regards these as, weight for weight, the most 
valuable of Scottish gems. 
Analyses of common garnet from Yell in Shetland, Killiecrankie 
and Meall Luaidh in Perthshire, Knockhill in Banff, and Clach-an- 
Eoin in Sutherland follow. 
There are, lastly, analyses of a new garnet from five localities — 
four of these in Eoss-shire ; the other, Ben Eesipol, in Argyll. 
This is a precious garnet , containing about fifteen per cent, of 
oxide of manganese. Its formula places it intermediate between 
the ordinary precious garnet of Bohemia and the manganesian garnet 
of America. 
This garnet, in all the localities where it is found, is of a fine 
currant-red colour, due probably to the manganese. From Eesipol 
and the Eaven’s Eock. near Strathpeffer, pieces large enough for 
cutting might probably be obtained. 
The lime garnets occur in certain of the limestone beds, at the 
upper waters of the Don and Dee, and not in others; and Dr 
