190S. Revieics. 181 



an iuterestiug district justifies this part being as well illustrated as the 

 next, Glacial Deposits, for which two plates and five illustrations in the 

 text are provided. At the same time, we know that the Glacial deposits 

 of the Dublin district are of special interest, and J. R. Kilroe, in his 

 descriptive matter, does justice to those fine old geologists like the late 

 Rev. Maxwell H. Close, ^ who studied the high-level drifts so carefully* 

 as well as those later workers in the same subject, Lamplugh and 

 Sollas, while Hinch's work is not overlooked. Mr. Kilroe, in his re- 

 marks on the origin of the Glacial deposits, agrees with Lamplugh and 

 the late Carvill Lewis that these high-level gravels containing marine 

 shells are the results of a great Irish Sea glacier rather than the proof of 

 a submergence in Glacial tim.es. 



Following such a controversial subject as this, Mr. Se\mour gets into 

 quieter waters in Mineralogy, giving a concise description of the more 

 recent discoveries, a list of 58 local minerals, and notes on the alluvial 

 gold deposits of the Wicklow hills. He gives an exceedingl}' full 

 bibliograph}' of the subject. Meteorology is treated by Sir John 

 Moore, who gives the result of observations made at four stations in or 

 near the cit}'. 



Botany occupies but 36 pages, only one-third of the space given to it 

 in the former Guide ; like Zoology, it is treated on totally different, but we 

 think, more acceptable lines. The Editor of the section, R. LI- Praeger, 

 contributes an article on "Vegetation vStudy in the Dublin District " ; 

 this is a new feature as far as the Irish Guides go. The various Plant 

 Associations, both of the eastern margin of the Central Plain and of the 

 upland area, are well described. N. Colgan's article on the Phanerogams 

 and Vascular Cryptogams is another concise contribution to our know'- 

 ledge of plant distribution in eastern Ireland, and as the flora of the 

 Dublin area, including Lambay, is now probably the best worked in 

 Ireland, he has had ample material for drawing correct conclusions. In 

 the Mosses, D. McArdle gives lists of special plants peculiar to Dublin 

 and Wicklow, of rarer mosses of the same area, of those remarkable for 

 their geographical distribution, or which seem to have become recently 

 extinct in the two counties. He also gives what is evidentl}' a very in- 

 teresting list of Hepaticse, classifying them under seven heads, such as 

 " Found only in Dublin or Wicklow/' "Local Hepaticse remarkable for 

 their Geographical distribution in the Tropics and Sub-Tropics," " North 

 American Types," etc. ; records, the significance of which will not be 

 overlooked by those who study insular floras and believe in the very 

 ancient origin of the Irish flora. Fungi, Lichens, and Algse are treated 

 respectively by Dr. Pethybridge, D. McArdle, and J. Adams. Though 

 much remains to be done in these groups, a comparison with the 1878 

 lists shows a distinct advance. For instance, in the Algse 13S species 

 have been recorded since 1878 (137 only mentioned in the text.) 



i Mr. Close was responsible for the Geological chapter in the 1878 

 Guicle. 



