Geologists^ Association. 91 



gated scales, to whicii are appended long grass-like linear leaves, 

 some of the detached scales showing large and very distinct sporules 

 at their base ; these were considered by him to be in all probability 

 the fruit of this species, — The plants named Cydostigma by Prof. 

 Haughton, which are also abundant at this locality, the author 

 believed to be quite a distinct genus from Knorria. He showed 

 that the external characters and condition in which it was found 

 offered no comparison with that species ; there was no ribbing of 

 the surface, which was marked by fine striae, the rows of stigmse 

 being arranged at much wider distances. The author believed the 

 plant named by Brongniart Lepidodendron GriiffitMi, to be a terminal 

 branch of Cydostigma. Of this genus Dr. Haughton had named 

 three species ; these the author proposed to restrict to one, C. Kiltor- 

 Tcense, Haughton. — In conclusion, the author brought forward facts 

 to disprove the statement made by Mr. Carruthers in the discussion 

 upon Dr. Heer's paper on the Bear Island Flora (as reported in 

 the Journal of the Geological Society of London, vol. xxvii., 

 p. 1, etc.), who had charged the Irish palaeontologists with " mis- 

 leading Professor Heer by their erroneous determination of the 

 Kiltorcan Lepidodendron," and thus influencing his belief in the 

 Carboniferous rather than the Devonian character of this deposit. — 

 In addition to the Fossil Plants, the author enumerated the other 

 associated Fossils at this rich locality : the Fish remains, including 

 Coccosteus, Pterichthys, Dendrodus, and Glyptolepis, with new Crus- 

 tacea named by him Pterygotus Hihernicus, Eurijpterus Kiltorhensis, 

 and Proricaris McJSenrici ; together with the only Molluscan shell 

 named by Professor Forbes Anodonta Jukesii ; all of these fossils 

 indicative, in the author's opinion, of the fresh-water origin of this 

 deposit. — Professor Haughton spoke as to the great value of the 

 communication, and moved that the paper should be printed with 

 fully illustrated plates, a resolution which was carried unanimously. 

 Professor Traquair's " Eemarks on the Genus Phaneropleuron " 

 was then read. 



Geologists' Association, 5th January, 1872. — The Eev. T. Wilt- 

 shire, M.A., F.G.S., President, in the Chair. — " On the Overlapping 

 of several Geological Formations on the North Wales Border," by D. 

 C. Davies, of Oswestry. The author stated that the geological for- 

 mations of the district ranged upwards from the Llandeilo to the 

 New Eed Sandstone. Attention was directed to the way in which 

 nearly every one of these overlapped the one below, hiding in its 

 course many of the beds, amounting in some cases to 1000 feet of 

 strata, which at other points were exposed. The overlaps increase 

 as a rule from north to south, except in that of the Bala and Caradoc 

 beds by the Llandovery, which increases in an opposite direction. 

 The author inferred that the conformability of strata at a given point 

 did not necessarily prove the imbroken sequence or complete series 

 of the beds at that point, and also that conformability between either 

 two consecutive beds of the same formation or between those of two 

 distinct formations was not to be expected to extend over a large 



