brickyard may be reached by taking a Church street car 

 to G len road , walking north to Binscarth road and then east 

 toTThe edge of the Don valley, where a path leads down to 

 the shale pit. 



There are numerous exposures of the shale along the 

 Humber extending from near lake Ontario to Lambton 

 Mills, two and a half miles up. The best outcrop for a 

 study is just south of the bridge over the Humber at 

 Lambton, where the river flows rapidly over the harder 

 beds, many slabs of which are exposed along its shores. 

 Here, in addition to the limestone layers, there are well 

 ripplemarked sheets of shaly sandstone. The surfaces of 

 the slabs display not only fossils, but a variety of markings 

 supposed to be due to physical causes. 



About two miles further up the valley on the west side 

 there is a large shale pit from which materials are got for 

 the manufacture of paving brick. This also affords a good 

 collecting ground. The Lambton outcrops may be reached 

 by taking a Dundas street car to the end of its route and 

 then a Lambton suburban car to Lambton Mills. 



The fossils found on the Humber differ somewhat from 

 those at the Don brickyard, as determined by Prof. Parks, 

 the western shale belonging to a somewhat higher horizon 

 owing to a gentle southwesterly dip of the beds. Many of 

 the fossils, however, are common to the two localities, and 

 they are not separated in the list prepared by Prof. Parks. 

 The most striking fossil is Isotelus maximus (sometimes 

 called Asaphus platycephalus), which is occasionally ten 

 inches in length. The fauna of the Don beds contains some 

 species typical of the Eden of Ohio, while the Humber 

 beds more closely resemble the Lorraine of New York. 



List of fossils at Toronto. 



Hydrozoa : — ■ 



Diplograptus pristis, Hisinger. 

 Echinoderms : — - 



Glyptocrinus decadactylus, Hall. 



Heterocrinus juvenis, Hall. 



Iocrinus subcrassns, M. and W. 



Palasterina rugosa, Bill. 

 Vermes : — 



Nereidavus varians, Grinnell. 



/ 



