SYMONDS NOTES OF A GEOLOGIST IN IRELAND. 



293 



and lie had noted the effect of the explosion of eight tons of gun- 

 powder in these quarries. The shock was so great as to be felt at the 

 distance of two miles, and even threw crockery off the shelves of 

 liouses situated at that distance. In connection w^itli this subject, Mr. 

 iMallet mentioned that at Rio Gambia, during an earthquake, where 

 the shock was perpendicular and not lateral, people were ehot upAvards 

 more than two feet. 



The scenery of Dublin Bay is bold and beautiful. It is backed by 

 the kSugar Loaf and Lugnaquilla Hills ; and, seen for the hrst 

 tiuje, under a bright sunshine, few persons would forget such a view. 

 The Geological Section, at the Dublin meeting, was below its usual 

 mark, owing probably to the absence of the most renowned of our 

 English geologists — Lyell, the philosopher of his science, w^as travelling 

 in Italy or Switzerland ; INIurchison Avas in Germany ; and the veteran 

 Sedgwick liors de comhat with the gout ; nevertheless there w^erc 

 some excellent papers by Professors Hennessey, Jukes, Haughton, 

 and Harkness, Dr. Kinahan, Mr. Du Xoyer, and many others ; also 

 an admiraljle paper on Indi i, by Professor Oldham. The Museum 

 of Irish Industry is a credit to Dublin, and to the gentlemen 

 connected with that institution. It is a most instructive collection 

 of the manufactures, the raw materials, the geology, and the 

 mineralogy of Ireland. The stranger -geologist and naturalist wants 

 to see Irish fossils and minerals ; and here, thanks to the labours 

 of the Geological Surveyors, he can do so without being, in any 

 way, incommoded by boots, harps, South Sea canoes, Chinese slippers, 

 and cobAvebs. We Avould acknoAvledge the ready kindness and 

 information Ave receiA^ed from Professor Jukes, Mr. Du IN'oyer, and 

 Mr. John Kelly, a Avorking geologist on the staff of Dr. Griffiths when 

 geology Avas more tedious and difficult than in these days of accumulated 

 knoAAdedge, maps, and sections. Mr. Du Noyer Avas good enough to 

 point out to us one of tliose ancient marine Avorms, from the Cambrian 

 deposits of Ireland, Avhich Avas actually fossilized in its burroAv ! 

 This old relic of life from the oldest known sedimentary rocks, is 

 named by its discoverer. Dr. Kinahan, Histioderma Hibernicum. 

 These " trumpet-shaped membranous tubes of a tentaculated worm " 

 may be found both at Bray and HoAA^tli. There is also a fine series of 

 that early zoophyte (or bryozoon, according to some), the Oldhamia, 



