SEPTEMBER 22, 1899. ] 
Sir William Dawson in 1862,** by Professor 
Hartt in 1865,+ by Sir William Dawson 
and Professor Hartt in 1868,{ and by Sir 
William Dawson in 1871S and 1882.|| The 
‘revised list of the Pre-Carboniferous plants 
of N. E. America’ in the first part of Sir 
William’s memoir on ‘ the fossil plants of 
the Devonian and Upper Silurian forma- 
tions of Canada,’ published by the Dominion 
Survey in 1871, contains the names of sev- 
enty species of fossil plants from the Devo- 
nian of New Brunswick, nearly all of which 
are from the Fern Ledges. In the second 
part of the same memoir, published in 1882, 
two additional species were described. 
The remarkable assemblage of air-breath- 
ing articulata and mollusca associated with 
these plant remains has been described by 
Salter in 1863,4] by Scudder in 1868,** by 
Sir William Dawson in 1880,;} and by Dr. 
Matthew in 1888{{ and 1894.S§. In the 
latter of these two papers Dr. Matthew 
states that the “‘ air-breathing articulates of 
the plant-bearing bed of St. John so far 
recognized consist of : 
Insects, nine species of eight genera ........ 9 
Myriapods, six species of several genera...... 6 
Arachnid similar to Anthracomartus.......... 1 
Probable pedipalp. (Eurypterella)........... 1 
Probably Arachnid or Isopod (Amphipeltis)....1 
Scorpion (Palxophonus arctus).........06se0es 1 
“Two species of land snails have also 
been found, raising the number of air- 
* Quarterly Journal of the Geological Society of Lon- 
don, Vol. XVIII., pp. 296-330. : 
ft In an Appendix to Professor Bailey’s Report on 
the Geology of Southern New Brunswick. 
}{ Acadian Geology, Second Edition, pp. 534-556. 
¢ Geological Survey of Canada. Fossil Plants of 
the Devonian and Upper Silurian Formations of 
Canada. j 
|| Tbid., Part 2. 
{| Quarterly Journal of the Geological Society of Lon- 
don, Vol. XIX., pp. 75-80. 
** Acadian Geology, Second Edition, pp. 523-526. 
Tt American Journal of Science, Vol. XX., p. 413. 
{{ Transactions of the Royal Society of Canada, 
Vol. VI., Sec. 4, pp. 57-62. 
22 Ibid., Vol. XII., Sec. 4, pp. 95-100. 
SCIENCE. 
407 
breathing animals found in the plant-beds 
of St. John to twenty-one kinds.” 
Elsewhere in this paper Dr. Matthew 
says that ‘later discoveries lead the author 
to think that Hurypterus pulicaris, Salter, 
should be referred to the myriapods or to 
the insects,”’ and in the foregoing list it is 
evidently included with the insects. To 
this list, also, should be added a trilobite 
and anannelid (Spirorbis Erianus, Dawson), 
which indicate marine or at least brackish 
water conditions, while from the description 
and figures it is difficult to see in what re- 
spects the very imperfect specimen de- 
scribed as a land shell under the name 
Strophites (since changed to Strophella) gran- 
deva differs from the presumably marine 
genus Macrocheilus. 
Detailed description of the stratigraphical 
relations ofthe presumed Devonian rocksnear 
St. John, by Dr. Matthew, were published 
in 1863* and 1865,, and many additional 
facts in relation thereto are contained in 
Professor Bailey’s Report on the Geology of 
Southern New Brunswick, published in 
1865. In 1863 Dr. Matthew gave the 
local and provisional names of the Mispec, 
Little River and Bloomsbury groups to the 
subdivisions of the supposed Devonian sys- 
tem in St. John county, the Little River 
group, including both the Cordaites shales 
of the Fern Ledges, with their numerous 
fossil plants, insects, etc., and the Dadoxy- 
lon sandstone. The Little River group was 
at first supposed to be of Upper Devonian 
age ; but, in consequence of the investiga- 
tions of Professor Bailey and Dr. Matthew 
in 1870, Sir William Dawson, in 1871, ex- 
pressed the opinion that the Mispee group 
represents the Upper Devonian, the Little 
River group the Middle Devonian, and the 
Lower Conglomerates (presumably the 
* Canadian Naturalist and Geologist, 
pp. 241-259. 
TQuarterly Journal of the Geological Society of Lon- 
don, Vol. XXI., pp. 429-30. 
Vol. VIL, 
