30 
(3) A third, where the roasting was performed for the 
cannibal feast. 
15. Six specimens of lava and volcanic scoriz ; from 
the plain of Mexico, and the neighbouring mountains.— 
General Wilkinson. 
16. Pumice-stone, alleged to have been found in the 
Highlands of New-York; the original piece, of which the 
present is a fragment, was as large as a man’s head, and 
floated in water.—T’. B. Cooke. 
17. Vitreous lava, from Hecla, Iceland.—S. Owens. 
18. Sample of the volcanic rock forming the Island of 
St. Helena. 
19. Lava from the banks of the river Rhine; of which 
the millstones from Cologne, heretofore used in New-York 
for grinding corn, and called by the Dutch settlers Holland 
millstones, were prepared. From the mills at Plandome. 
20. A piece of the rock of which the Island of Madeira 
chiefly consists ; rough volcanic substance, between slag 
and cinder; perhaps illustrating the cause wherefore the 
grape of the vine in that spot elaborates a juice on such an 
igneous base, as is unknown in every other place. 
21. Samples from the Azores, or Western Islands in the 
Atlantic ocean. , 
(a) Lava from Fayal; and 
(6) Sulphuret and sulphate of lime, from St. Michaels. 
22. Lava, tufas, and other igneous productions, from the 
Peak of Teneriffe.—Perry, and Dey. 
23. Volcanic sulphurs, or primitive brimstones ; from 
Mount Vesuvius. 
24. Articles of the like sad; amorphous and erystal- 
ized; some of them with an incipient association with 
lime. From the sel near Naples. pve and 
instructive. age Ts % 
25. Sulphurets, with small admixtures ; from Sollatatra 
—R. Bayley. ! 
26. Igneous sulphur, with calcareous entbtaltor; from a 
spot in Java Island, 60 miles from Batavia. The crater is 
