446 Intelligence and Miscellaneous Articles. 



mass on cooling. If the crystalline mass, separated by pressure 

 between two bricks from the excess of the alkaline solution, be 

 treated with water, traces of unaltered indigotin are precipitated, 

 and there remains in solution a salt of potash containing a new acid, 

 which the author has named chrysanilic acid ; when the chrysanalate 

 of potash is decomposed by an acid, the new acid is precipitated in 

 red flocculi. The author has examined the compounds which it forms 

 with bases, and has submitted them to analysis ; he does not, how- 

 ever, consider his analytic results as satisfactory ; but he has ascer- 

 tained that 0-250 gramme of indigotin yielded 0-203 gramme of the 

 acid ; that is to say, more than 80 per cent : when chrysaniUc acid 

 is treated with dilute sulphuric acid, it yields a bluish red liquor, which 

 deposits a crystalline body of a blackish blue colour, and retains in 

 solution a new acid, which the author calls anthranilic acid. This acid 

 may also be formed by the action of the aii- on chrysanalate of potash. 



Anthranilic acid crj'^stallizes in scales ; it is slightly soluble in cold 

 water, but very soluble in alcohol and aether ; it fuses at 276° Fahr. 



The anthranilates of potash, soda, and ammonia, are soluble and 

 crystalline ; the metallic salts are precipitated in small crystals ; this 

 acid is decomposed by heat into carbonic acid and anilin, which has 

 been previously described by the author, but he has not yet de- 

 termined the composition of the blackish blue substance deposited 

 from the liquor resulting from the action of sulphuric acid on chry- 

 sanilic acid ; it appears to reproduce indigotin under certain circum- 

 stances. — Journal de Pharm, et de Chim., Jan. 1842. 



ON RECENT CONGLOMERATE FORMED ON THE SEA-COAST 

 AROUND IRON. BY H. N. NEVINS. 



To the Editors of the Philosophical Magazine and Journal, 



Gentlemen, 



An account appeared some years ago in your Journal (vol. x. p. 10.) 

 of an anchor found at Seaton encrusted by sand and pebbles. 



At Tramore, a bathing-place within six miles of this city, such a 

 substance is frequently observed on the sandy beach, but generally 

 containing a nail or portion of iron from which no probable date can 

 be derived. However, some time since, I picked up a piece of con- 

 o-lomerate, composed of sand and the common rolled pebbles, and 

 strongly cemented by oxide of iron, — my attention having been ar- 

 rested by the latter circumstance, as otherwise it had the appearance 

 of a rolled stone from the cliffs to the eastward. 



The first thing that attracted me on cracking it was a strong bi- 

 tuminous smell, which on caref-ally opening the mass I found to 

 proceed from the lackering of a large padlock firmly imbedded in 

 and completely hidden by the conglomerate. 



The outside of the lock is much decayed, and requires the greatest 

 care to prevent it from falhng to pieces. 



The crust of sand, &c. varies in thickness from two inches to a 

 quarter of an inch ; and but very little having penetrated into the 

 ■works, the construction of the padlock is quite exposed. 



Wishing to ascertain its probable age, I showed it to a person 



