ON ISOMERIC NAPHTHALENE DERIVATIVES. 



99 



Assuming that the chloro-acids undergo a similar change, the acids 

 derived from ortho- and parachlorobenzaldehyde should each yield but a 

 single chloronaphthol, and that from the metachlor-aldehyde should alone 

 be capable of yielding two isomers, viz.: — 



CI OH OH 



1' : 1 



3' : 1 



Actually they obtained eventually from the metachloro-acid 7;-di- 

 chloronaphthalene (m.p. 48°) ; and as ^-dichloronaphthalene (m.p. 83°) 

 is undoubtedly the 1 : 1' derivative, they regard the ?; as the 1 : 8' 

 derivative. The orthochloro-acid was found to yield y-dichloronaph- 

 thalene, and hence they regard this as the 1 : 4' derivative — a conclusion 

 which harmonises with previous views. 0-dichloronaphthalene (m.p. 61°'5) 

 ■was prepared from the parachloro-acid, and accordingly this is represented 

 to be the 1 : 2' derivative. 



But these conclusions are entirely based on the assumption that the 

 naphthol-hydroxyl is derived from one of the carboxyl groups of the 

 succinic acid, as indicated by the symbols given above : there is, 

 however, no reason why it should not be derived from the COH group of 

 the aldehyde, and in this case the rj would be the 1 : 2' and the 6 the 1 : 3' 

 derivative. In any case, this objection entirely deprives Erdmann and 

 Kirchhoff's arguments of their force: as in the case of benzene, there 

 is little doubt that the constitution of naphthalene derivatives will be 

 determined eventually by the study of naphthalene derivatives and not 

 by synthetic methods of the character of those in question. 



Third Report of the Committee, consisting of Dr. Garson, Mr. 

 Pengelly, Mr. F, "W. EuDLER, Mr. Gr. W. JBloxam (Secretary), 

 Mr. J. Theodore Bent, and Mr. J. Stuart G-lennie, appointed 

 for the purpose of investigating the Prehistoric Race in the 

 Greek Islands. 



This spring Mr. Bent commenced researches on the promontories jutting 

 into the Korean Sea alons: the coast of Asia Minor. On the most 

 southern of these, opposite the island of E.hodes, was discovered near the 

 ancient Loryma, vfhich was identified by Leake, a curious little harbour, 

 and near it the ruins of a town. After working here for two days, from 

 inscriptions on tombs and the sites of temples, it was identified as having 

 anciently been called Kasarea, or, as Ptolemy and Pliny respectively call 

 it, Kprjacra Xifx-qv and Portus Cressa. 



Proceeding eastwards, on a promontory to the west of the Gulf of 

 Makri, he found the ruins of another hitherto unknown town. Here he 

 was able to work for many days and found much of interest, including 

 33 inscriptions, which informed him that this town was anciently Lydte, 



H 2 



