410 SCIENCE. 
1843 were described by Sir William Daw- 
son: four (Psilophyton princeps, P. robustius, 
Lepidodendron Gaspianum and Prototaxites 
Logani) in the Quarterly Journal of the Geo- 
logical Society of London for January, 1859 ;* 
and two ( Cordaites angustifolia and Selaginites 
formosus) in the Canadian Naturalist and 
Geologist for June, 1861. In the former of 
these papers the two remarkable genera 
Psilophyton and Prototawites were first pro- 
posed and defined. Subsequently, however, 
in 1888, Sir William somewhat modified his 
earlier descriptions of Prototaxites and 
changed its géneric name to Nematophyton.+ 
Selaginites formosus was abandoned ‘as a 
vegetable species’ by its author in 1871, 
because additional material showed that the 
specimens upon which it was based are 
‘probably fragments of some Eurypteroid 
crustacean,’ } as suggested by Mr. Salter. 
The supposed worm-tracks from the 
Gaspé sandstone between Tar Point and 
Douglastown, discovered by Logan in 1843, 
were described and refigured by the writer, 
under the name of Gyrichnites Gaspensis, in 
the Transactions of the Royal Society of 
Canada for 1882. 
Logan’s examinations of the Gaspé series 
of sandstones and limestones were supple- 
mented by those of Murray on the Douglas- 
town and St. John rivers in 1845 ; of Rich- 
ardson on the Magdalen River and upper 
part of the Dartmouth in 1857, and of Bell 
of the Dartmouth, York and Malbaie riv- 
ers in 1862. Sir William Dawson also made 
extensive collections of fossils around the 
shores of Gaspé Bay in 1858 and 1869, and 
Dr. Ells'a general geological survey of the 
Gaspé peninsula, from Gaspé Basin to the 
Matapedia River and from the St. Law- 
*Vol. XV., p. 477. 
{The Geological History of Plants, page 21; and 
Transactions of the Royal Society of Canada for 1888, 
Sec. 4, pp. 27-47. 
{ Geological Survey of Canada. ‘The Fossil Plants 
of the Devonian and Upper Silurian formations of 
Canada, Part 1, p. 65. 
[N.S. Von. X. No. 247. 
rence River to the Baie des Chaleurs in 
1880-83, and a similar survey of the De- 
vonian basin of the Causupscal River in 
1884. 
The collections made by Sir William 
Dawson in 1869 added thirteen additional 
species of fossil plants to the flora of the 
Gaspé sandstones, and these species were 
described and illustrated in the first part of 
his memoir on the ‘ Fossil Plants of the De- 
vonian and Silurian Formations of Canada,’ 
published by the Canadian Survey in 1871. 
The ‘Geology of Canada,’ published in 
1863, contains lists of some of the marine 
invertebrate fossils of the Gaspé limestones _ 
and sandstones, collected by Logan, Daw- 
son and Bell, and these fossils were more 
fully determined or described by E. Bill- 
ings in the first part of the second volume 
of Paleozoic Fossils, published by the Cana- 
dian Survey in 1874. A small species of 
Cephalaspis, also, collected by Professor G. 
T. Kennedy, then one of Sir William Daw- 
son’s assistants, from the Gaspé sandstones 
on the north side of Gaspé Bay in 1869, was 
described and printed by Professor Ray ' 
Lankester, in the Geological Magazine for 
September, 1870,* under the name of C. 
Dawson. 
In the ‘Geology of Canada’ it is stated 
that the ‘‘ limestones of Cape Gaspé appear 
for the most part to belong to the Lower 
Helderberg group.” * * * “The fossils at the 
summit, however, bear a striking resem- 
blance to those of the Oriskany formation. 
with which several of them are identical. It 
appears probable, therefore, that we have 
a passage from the Lower Helderberg to here 
the Oriskany, and the latter formation may 
be more especially represented by the lower 
part of the Gaspé sandstones.’’ Hleven years 
later, in 1874,+ E. Billings expressed the 
opinion that the lower 330 feet of the Gaspé 
*Volume VII., p. 397. 
+ Geological Survey of Canada. Paleozoic Fos- 
sils, Vol. II., Pt. 1, p. 1. 
