394 Miscellaneous Intelligence. 
and Blengini, of Turin, prepared some of these substances very care= 
fully, and administered them in cases where the results could be 
accurately observed. It was found that eight grains of any of these 
substances produced no deleterious effects on dogs, crows, or frogs ; 
nor on a horse even when the dose was repeated. ‘The meconiates 
were also administered to two persons in cases of teenia, in doses of 
four grains, but without producing any effect either on the persons 
or the worms. These results agree with those obtained by MM. 
Suertuerner and Semmering : and in those cases where death was 
produced by doses of a grain of meconic acid, Dr. Fenoglio attributes 
the results to the defective preparation of the substance, and the pre- 
sence of morphia in it; and the symptoms observed seem to accord 
with this opinion. 
3. On the different masses of Iron which have been found on the 
Eastern Cordbiliera of the Andes. By MM. de Rivero and Boussin- 
gault.—On arriving at Santa Rosa, a village situated on the road 
from Pamplona to Bogota, we learnt that a mine of iron had been 
discovered in the neighbourhood, and that a fragment of the mineral 
served for an anvil to a farrier (or blacksmith) ; but we were agree- 
ably surprised when we saw that this supposed mineral was a mass 
of iron full of cavities, of an irregular form, and presenting all the 
characters of meteoric iron. 
This mass was found on the hill of Tocavita, about a quarter of a 
league to the east of the village in 1810. We went to the place, and 
saw the hole from whence the mass had been removed, for it was 
almost entirely under-ground, a point of a few inches only appearing 
at the surface. The hill of Tocavita, like that of Santa Rosa, belongs 
to the secondary sandstone formation, and which we have observed for 
a considerable extent. 
Santa Rosa is about twenty leagues N.E. of Bogota, lat. 5° 40’, 
long. 75° 40’ west of Paris, and 2744 metres (9003 feet) above the 
sea. The people of the village collected together to remove the mass 
of iron: it remained eight years at the town-hall, and afterwards for 
seven years did service in the blacksmith’s shop. 
The iron was cellular, but no vitreous coat could be perceived on 
ite It was malleable, of a granular structure, easily gave way to the 
file, was ofa silvery aspect, and its specific gravity 7.3. The volume 
of the mass was 102 cubic decimetres (3.6 cubical feet), its weight 
therefore must be nearly 750 kilogrammes (1655 Ibs.) 
It is worthy of observation, that at the same time that this mass 
was discovered, a number of smaller fragments were found on dif 
ferent parts of the same hill. During the short time which we re= 
mained in the place, we collected several specimens. To demonstrate 
the identity of these masses with those which various travellers have 
described, some chemical examinations were undertaken, The usual 
