Palceontographical Society. 225 



twenty-five square miles, while it varies from ten to thirty feet ia 

 thickness. Its age is uncertain, as it lies upon the Coal-measures. 

 It was from a block of this rock that the notorious imposition called 

 " Cardiff Giant " was carved. 



The lowest rock in the State is called the " Sioux quartzite," of 

 which only about fifty feet thickness is exposed. It is probably of 

 Huronian age, and contains no fossils. 



The two volumes of this Eeport are full of special details re- 

 specting the several formations throughout the State. It is per- 

 spicuously written, and reflects great credit upon the State and 

 the author. The latter suggests that more work is required to set 

 forth properly the Geology of the Coal-measures and the Palaeonto- 

 logy, Mr. 0. H. St, John has been the geological, and Mr. Eush 

 Emery the chemical, assistant, — C. H. H. 



(To he continued.) 



Pal^ontogeaphical Society. — Annual General Meeting held in 

 the Apartments of the Geological Society, Somerset House, London, 

 March 31, 1871, Dr. J. S. Bowerbank, F.E.S., President, in the Chair. 



Beport of the Council. — In presenting their Twenty-fourth Annual 

 Eeport, the Council have again to congratulate the Members on the 

 continued well-being of the Society. In the matter of Subscriptions 

 the progress has been highly satisfactory, the addition of new names 

 having more than balanced the loss arising from the absence of old 

 and valued friends — an absence occasioned by the lapse of time, and 

 not through any want of confidence or interest in the yearly memoirs. 

 Much care has been bestowed to lessen the arrears and to publish the 

 annual volumes with greater regularity ; that this endeavour has not 

 been in vain, may be shown by the fact that the volume for 1870 

 was wholly printed off by the close of last year, and that for 1871 

 is in so advanced a state that it will be issued before the winter. 

 The volume for 1870, now completely distributed and forwarded to 

 all members not in arrear of subscriptions, was rich in information 

 and illustrations ; produced at a cost of more than £650, it has added 

 174 species to those already catalogued. (For a full account of this 

 volume see the Geological Magazine for April last, p. 175, which 

 also contains a notice of Mr. Thos. Davidson's great work, with a 

 memoir of that eminent Palgeoutologist, p. 145.) The volume for 

 1871 has most of its plates ready and a part of its text in type ; its. 

 contents will embrace memoirs from the pens of Prof. Owen, Prof, 

 Duncan, Dr. Lycett, Dr. Wright, Mr. Binney, Mr. Woodward, and 

 Messrs. Boyd Dawkins and Sanford, and will treat of the Iguanodon, 

 the Oolitic Corals, the Trigonice. the Coal Plants, the Older Crustacea, 

 and the Pleistocene Mammalia. The preparation of forthcoming 

 Monographs has not been neglected. During the last twelve months 

 upwards of 36 plates have been drawn upon stone and copper in 

 illustration of works connected with this and future years. Of these 



VOL. VIII.— NO. LXXXIII. , 16 



