Williams.] HITCHCOCK 1 * MIC TORT. 27 
species more than it does the typical Ludlow. Were this true, as 
claimed by some European geologists, the actual likeness is no greater 
than that between the Wenlock and Ludlow faunas, one of which is 
known to succeed the other. 
Looking- at all the evidence and giving all respect to the opinion of 
European geologists, the writer is forced to believe that the evidence 
of the Maine and New Brunswick faunas confirms the correlations of 
De Verneuil, Sharp, Bixby, and Hall and Logan as to the place of 
the boundary line between Silurian and Devonian in North America, 
and positively shows the Lower Helderberg to lie below that boundary 
line. 1 
PALEOZOIC FAUNAS ALREADY REPORTED FROM MAINE 
AND BORDERING REGIONS. 
Paleozoic faunas have been recognized in Maine by various authors, 
and a few localities have furnished lists of species already published. 
Before reporting the additions recently made, a brief statement of each 
of the various fossiliferous localities and the lists of species already 
reported from them will be given. No attempt will be made at pres- 
ent to revise these lists. . The faunas from Gaspe and a few other 
localities are added, in order that the reader may have before him for 
comparison the facts at present accumulated which bear upon the 
geologic classification of the Paleozoic rocks of this region. 
LOCALITIES IN MAINE. 
A paper entitled Notes on the Geology of Maine, prepared by 
C. H. Hitchcock, State geologist, was read before the Portland Society 
of Natural History on March 3. 1862, and subsequently published in 
its proceedings. 2 The paper refers ^o the collections made by the 
author in the previous summer (1861) and placed in the hall of the 
society. Preliminary lists of the fossils are given. Some passages 
in this report are also found m the Agriculture and Geology of 
Maine, which, from internal evidence, 3 appears to have been published 
in 1862, though the date on the title-page is 1861. It is not evident 
whether the manuscript of the Agriculture and Geology report 
was handed in at the time of reading the paper above mentioned, or 
the paper was read first. The report in Agriculture and Geology 
1 Since the above was written a fuller study of the fauna of the Chapman sandstone has been made, 
and its close correlation established with the fauna of Zone D of Honeyman's upper A.risaig, 
which was identified by Salter with the Ludlow Tilestone fauna of Wales. The results of these 
studies were given in a paper read before the Geological Society of America in December, 1S99. A 
paleontologic discussion of the fauna is published in the American Journal of Science for March, 
1900. (See the Silurian-Devonian boundary in North America; 1. The Chapman Sandstone fauna: 
Am. Jour. Sci., 4th series, Vol. IX, pp. 203-213.)— H. S. W., April 3, 1900. (See p. 80.) 
-Vol. I, Pt. I, pp. 72-85. 
:; The date of publication of the Report on Agriculture and Geology (second series for 1861) is indi- 
cated to be as late as 1862 by the date of the secretary's report, which is "January, 1862" (see p. 89). 
