336 NATURAL SCIENCE. November. 



publications that are not in the hands of the ordinary geologist, such 

 as the Transactions of the Kilkenny Archaeological Society or the 

 Journal of the Historical and Archaeological Association of Ireland. 

 In the absence of any bibliography, the work of the numerous 

 energetic naturalists who are springing up all over Ireland in connec- 

 tion with the various field-clubs, to which we have often alluded, was 

 necessarily hampered, and this careful compilation by Mr. Lloyd 

 Praeger will be welcome specially to them and also to students of 

 Glacial phenomena in other countries. The bibliography includes 

 papers not only on the Pleistocene beds of Ireland, but also on the 

 "manure" gravels of Wexford, which, though generally considered 

 to be of Pleiocene age, possess a fauna related to that of the Glacial 

 period. References are also included to the literature of the caves, 

 on which so much valuable work has recently been done in Ireland. 

 The bibliography appears to have been carefully compiled, and is 

 clearly printed. It might perhaps have been improved from a 

 technical point of view had some indication been given when the 

 name of an author was carried over from one page to another. For 

 instance, the reader seeing 90 Bell (Alfred) at the top of page 252 

 might suppose that No. 90 was the first paper by Alfred Bell recorded 

 in the book, whereas the papers ascribed to him really begin at No. 85 

 overleaf. The difficulty is easily got over by the insertion of " cont." 



The value of the list is increased by an index to the numbers 

 under various geological, palaeontological, and geographical heads, 

 such as "raised beaches," " prehistoric implements," "Co. Cork." 

 This index, as the author himself recognises, would have been of far 

 greater value had it been compiled from the papers themselves, and 

 not merely from their titles or from the brief indication of their con- 

 tents that has occasionally been added by Mr. Praeger. Authors are 

 too fond of giving to their papers titles that convey a totally wrong 

 impression of the contents, and abstractors are too prone to pay 

 attention to the points that interest themselves rather than others, 

 for such a method of constructing an index ever to produce a reliable 

 and final guide. 



The copy sent to us for review is in printed wrappers with a 

 separate title-page, but it does not appear whether the work can be 

 purchased apart from the Proceedings of the Belfast Field Club. We 

 hope it can. 



Tyndall's Glaciers. 



The Glaciers of the Alps : being a Narrative of Excursions and Ascents, an 

 Account of the Origin and PJienomena of Glaciers, and an Exposition of the 

 Physical Principles to which they are related. By John Tyndall. New Edition. 

 8vo. Pp. xxvii., 445, with 5 plates aud 57 figures. London : Longmans, Green 

 and Co., 1896. 



The recent growth of the interest taken in Alpine gymnastics has in 

 ■one way been a source of inconvenience to geologists. During the 

 last few years there has been so great a demand for the earlier Alpine 

 literature, that most of the best books have long since gone out of 

 print, and risen to a fancy value that places them out of the reach of 

 most naturalists. In the case of books of purely topographic 

 interest, this is not a matter of much importance ; but when fashion 

 increases the cost of such an important work as Tyndall's " Glaciers 

 of the Alps " to many times its published price, it is decidedly matter 

 for regret. Glacial geologists will therefore be very grateful to Mrs, 

 Tyndall for her republication of this book. Beyond welcoming its 

 appearance we need say little : the book is too well known. It is a 



