presented to the Botanic Garden of Edinburgh. 117 
voyage, and under innumerable adverse circumstances. It is in 
the preservation of these, then, that we most frequently fail. 
Here, however, accident, the real author of many important 
facts in science, would seem to point out the truth. Many 
seeds, buried under ground for the greater part of a century, 
have remained fresh and healthy, and have germinated with vi- 
gour on being restored to the surface. Why should we not apply 
this to the present object.? In the present experiment of Dr 
Wallich, and in those of M, Thouin, the seeds sown near the 
surface germinating early, uniformly were etiolated, and the 
plants died : but in both, those that were excluded from the 
agents necessary to germination, remained sound, and sprang up 
vigorously on being restored to their influence. 
3. Instead, then, of the smaller boxes used in these instan- 
ces, let large casks, or, for the convenience of packing, square 
boxes of several feet in diameter, be filled with layers of 
about an inch of fresh mould (free from worms and the larvge 
of insects,) alternating with the respective seeds, within ten inches 
of the surface ; the bottom of the boxes being perforated, and 
several inches of pebbles placed upon it. I have observed that 
sand, especially that which contains calcareous and ferruginous 
particles, is less adapted to the preservation of seeds, from its 
being disposed to concrete, and thus rendering them mouldy. 
4. The surface of the boxes should be planted with such rare 
species as may be supposed capable of encountering the voyage 
with the greatest probability of success ; as the proper treat- 
ment, and especially the watering of these, will tend to preserve 
the seeds below from total exsiccation during the passage. 
Akt. Account of Three New Species of Lead-Ore found 
at Leadhills. By H. J, Beooke, Esq. F.B. S. Lond. M.G.S. 
&c. &c. Communicated by the Author, 
A-Mong some specimens of lead-ore from Leadhills, I have ' 
found three new species, of which two have been noticed by 
Count Bournon, and one by Mr Sowerby. I shall designate 
them by the names of 
Sulphato-ca')d)onate of lead. 
Sulphato-tr.l-carhonate of lead. 
Cupreous sidphato-carhonate oflead^ 
