S32 Horner's Geological Address. 



nounced by M. Brongniart to be identical with plants of the coal 

 formation. The remainder are peculiar (as far as is hitherto 

 known) to the Permian system. All the genera are common 

 to this and to the carboniferous series ; the genera Odontop- 

 teris, Noeggerathia, and Lepidodendron, had been hitherto sup- 

 posed peculiar to the coal-measures. Altogether, the Permian 

 flora is evidently much more similar to that of the carbonifer^ 

 ous system than to any other : it has no affinity to that of the 

 Gres bigarre, or of the Juras^^ic system. 



Mr Morris has likewise described the fossil plants brought 

 by Count Strzelecki from the coal-fields of New South Wales 

 and Van Diemen's Land. Unfortunately the materials were 

 very scanty, the number of species being only eight ; and it is 

 singular, that of this number four are from the coal-field of 

 New South Wales, and four from that of Van Diemen's Land, 

 no one species having been found common to the two. Both 

 these Australian coal-fields are very remarkably distinguished 

 from those of Europe and North America by the entire ab- 

 sence of SHgmarice, Sigillariw, Lepidodendra, and Calamites. 

 In this respect they agree with the coal formation of Burdwan 

 in Northern India, to which, indeed, they have other points of 

 sti'iking similarity in the character of their vegetable remains. 

 The Glossopteris Browniana is actually common to the coal 

 formations of New South Wales and of India, and the Peeop- 

 teris australis of the former country comes very near to the 

 Indian P. Lindleyana. The tiora of the coal-fields of Austra- 

 lia has likewise a striking similarity to that of our Yorkshire 

 oolites. Glossopteris Browniana is nearly allied to Glos. Fhil- 

 Upsiij Pecopteris australis to P. Whitbiensis, and Pecopteris 

 alata to P. Murray ana. It is possible that the coal of Aus- 

 tralia and of Northern India may really belong to the Jurassic 

 system. 



In the '* Geology of Russia,^' a work I have already so often 

 referred to, there is an immense mass of valuable contributions 

 to palaeontology, by different distinguished naturalists. The 

 following are the parts which relate to the Invertebrata : — 



1. A very elaborate and important essay by Mr Lonsdale on 

 the palsepzoic Corals of Russia, abounding in minute details of 



