35 
MEETING ON 6th JANUARY, 1870. 
The monthly meeting of the Society was held in 
the Glover’s Hall, on the evening of Thursday last, 
the 6th instant—Dr Buchanan White, president, in 
the chair. There was a good attendance of members. 
The President presented to the Museum a collection 
of 76 species of birds eggs, and he exhibited the fob 
lowing species of silk-worm moths;—- 
1. Bomhyx Pernyi, the caterpillar of which feeds on 
oak, and is easy to rear. 
2. Bomhyx Yama-Mai, also an oak feeder, and a 
producer of valuable silk. This is a native of 
Japan, and thrives best in a cool climate. 
3. Bomhyx Cynthia, another good silk producer, will 
feed on various plants. 
4. Saturnia Pavonia-majov, a native of Europe and 
not difficult to rear. Feeds on pear, plum, sloe, &c. 
Eggs and caterpillars (in their season) of these, and 
12 other species, can now be obtained in Britain, and 
being much more handsome and larger than the com¬ 
mon silk-worm (Bomhyx Mori) ought to take the 
place of the latter with those who rear silk-worms for 
amusement. The President also laid on the table 
specimens of Discelium nudum gathered near Perth. 
This somewhat local moss was found in the same 
place by Drummond, the great Scotch Bryologist, 
towards the end of last century, but has not (proba¬ 
bly) been, found again here till recently. It is found 
in other parts of Scotland and in the north of Eng¬ 
land. 
The following communication was then read from 
Dr Lauder Lindsay, on— 
THE GOLD AND GOLD-FIELDS OF PERTHSHIRE. 
With caution judge ot possihildy ; 
Things thought unlikely, e’en impossible, 
Experience often shoivs us to be true/ 
—Shakespeare. 
For many months now the public ear has been 
ringing with the fame of what are known as 
^‘The Sutherland Gold-Diggings.” Not only the 
