£96 ON THE ONYKIA ANGULATA. 



Before T conclude these remarks, I must observe, 

 that it does not appear that the presence of zinc af- 

 fects the properties of iron. In Belgium the iron 

 is of good quality ; and it is an interesting fact, that 

 the bar-iron of An cram is in great demand at 8120 

 per ton, a higher price than is at present paid for 

 any imported iron. The castings from the Ancram 

 furnace are in such repute, that no other pigs are 

 used at the West Point foundry for the heavy guns 

 (32 and 42 pounders) now casting for the United 

 States' navy. 



The Ancram furnace equals, in beauty of work- 

 manship, and economy of meaus, any that we have 

 seen : and we entertain no doubt, that all works car- 

 ried on with such admirable perfection, must and 

 will always prove equally honourable and profitable 

 to their owners and directors. 



On the Onykia Angulata, By C. A. Lesueur. 

 Read Sept. 10, 1822. 



Shortly after I had published descriptions of seve- 

 ral new species belonging to the family of the Loli- 

 goes, Br. Hays favoured me with several animals, 

 collected by Dr. Hodge, during his voyage from the 

 East Indies to the United States. Among these was 

 a very small individual of the genus Kxocetus, and a 

 specimen of the genus Salmo. This latter offered 

 very peculiar characters in the form of its teeth, 

 which are hooked and armed with a small interior 



