46 



In the earlier days of the Survey's operations, the fossils of this forma- 

 tion were collected — at Gait by A. Murray in 1847, by Professor James 

 Hall in 1848, by E. Billings, assisted by John (not James) Richardson, in 

 1857, by Dr. R. Bell in 1861, and by T. C. Weston in 1867 ; at Guelph 

 by E. Billings in 1857 ; at New Hope (now called Hespeler*) by E. Bill- 

 ings in 1857, by T. C. Weston in 1867 and 1871 ; at Elora by Dr. R. 

 Bell in 1861, and by T. C. Weston in 1867. Some of the fossils of the 

 Guelph formation in the Museum of the Survey 'were collected by Mr. 

 David Boyle at Elora between the years 1876 and 1881, and a large 

 number of unusually fine specimens, upon which both this and the pre- 

 ceding part of the present volume are largely based, were collected by 

 Mr. Townsend in the vicinity of Durham in 1878-75, and since then at 

 Elora, Belwood, etc. 



For the information of those who may not be familiar with the litera- 

 ture of the subject, it may be well to state that the earliest descriptions 

 of the fossils of this formation in Canada are contained in the second 

 volume of the Palaeontology of the State of New York, published in 1852 

 and in pages 154-169 of the first volume of " Palaeozoic Eossils " published 

 by the Survey in 1862 and 1865. In the former, fifteen species were 

 described and figured by Professor James Hall, and, in the latter, twenty- 

 one additional species were described by E. Billings, sixteen of which are 

 figured. Between 1865 and the date of publication of the first part of 

 this volume (1884), descriptions of a few more fossils from the Guelph 

 formation of Ontario have appeared in various publications, but it will 

 not be necessary to refer to these descriptions or publications any further 

 here, as the name of each species in the following systematic list will be 

 accompanied with full references to the memoirs or papers in which it has 

 been described or quoted. The classification followed in this list is for 

 the most part that adopted by Zittel in his Handbuch der Palaeontologie, 

 but the gasteropoda are arranged in accordance with the order followed 

 in Lindstrom's monograph of the Silurian gastropoda, etc., of Gotland. 



In 1888 rocks containing numerous specimens of a coral apparently 

 identical with Pycnostylus Guelphensis, and of a Stromatoporoid appar- 

 ently referable to Glathrodictyon ostiolatum, and therefore probably of 

 the age of the Guelph formation, were discovered by Mr. J. B. Tyrrell at 

 Davis Point, on the eastern shore of Lake Manitoba. At the meeting of 

 the American Association for the Advanpement of, Science at Rochester, 

 N. Y., in 1892, Professor Albert L. Arey exhibited quite a large series of 

 fossils characteristic of the Guelph formation, which were collected in the 

 immediate vicinity of that city. 



*The name New Hope was formally and officially changed to Hespeler in July, 1858. 



