VOL. XXIII.] PHILOSOPHICAL TRANSACTIONS. 4/ 



312. Jo. Rhod. Cent. 3. obs. 57. 5. The horn of a sea unicorn, or monoceros, 

 so called by the learned, because supposed to have but one ; but sometimes 

 more are found to grow out of the upper jaw; and I was credibly informed at 

 Copenhagen, that one Koens, a Ham burgher, brought home from Greenland 

 the head of one of these with two horns on it. 6. Several pieces of gold ore, 

 very rich, and some almost fine, dug out of the mines of Norway and Hungary. 

 7. Several large pieces of silver ore, also dug out of the mines of Norway, one 

 of which weighed 56o lb. Anno 1(366, 5 feet and 6 inches long, and 4 feet 

 round, valued at 5000 crowns; another piece from Norway, also valued at 3272 

 crowns. I observed a great many silver threads or trees sprouting out of these 

 two pieces, and fancy the whole mass had not above a fourth part of any baser 

 metal, mineral, or earth, mixed with it. There are several of these silver 

 ramifications or trees, all from Norway, which I take to be virgin silver, and 

 pure metal. 8. A great variety of very large pieces of amber, some dug out of 

 the island of Anaker near Copenhagen, and some when they were opening the 

 ditches for the fortifications of Copenhagen; some of these weigh 40 or 50 

 oz. and were found every where sticking fast to pieces of black timber like 

 ebony. Q. A numerous collection of very large branches of coral, white and 

 red, and one black. 10. A large pair of stag's horns growing out of a piece of 

 wood, after a very strange manner. 1 1. Another branch of a stag's horn, with 

 a large piece of wood naturally adhering to the top of it, the top of the horn 

 piercing the very body of the wood, and growing some inches beyond it. 12. 

 A sheep, with a horn growing out of its side, about a foot long. 13. I mea- 

 sured the thigh-bone of a human body, that was 3 feet and 3 inches long ; the 

 head was 2 feet and 5 inches round, and the middle of it was iQi inches about. 

 14. Two very large scallop shells, that weigh 224 lb. each. 15. A piece of mar- 

 ble, with a natural representation of a crucifix on its outside, highly valued by 

 the Lutherans. 



There were besides these a great many more natural rarities, which my short 

 stay there would not permit me to examine. 



Among the artificial curiosities I observed, I. A skeleton made of ivory, in 

 imitation of a human skeleton, 2 feet 6 inches long, so artificially and curiously 

 put together, that any one not well skilled in osteology may take it for a natural 

 skeleton. 2. Two crucifixes of ivory, with the whole history of our Saviour's 

 passion, extremely well carved and expressed. I saw there a great variety of 

 toys made of ivory, curiously wrought on the outside ; as, a small man of war 

 in ivory, with silver guns, several small sloops and galleys of the same, and 

 one made of the unicorn's hOrn, with a gold anchor. 3. A watch made of 

 ivory, with all its wheels and motions. Several other utensils made of ivory 



