BUCKMAN — SEARCH FOR COAL. 



129 



ing to the species Holoptychius, Coelacanthus, Ctenacanthns, Amblyptenis 

 and Palaeoniscus. tnmy first paper I mentioned some small coal seams 

 in the millstone grit. They are scarcely worth working, but they are all 

 very rich in fossil remains. From these seams I have extracted 

 Productus, Leptaena, Lingula mytiloides, Turritella, Conularia quadrili- 

 neata, ITodiola, and a small Orthoceras. From the small ''pins "of 

 ironstone and the ferruginous clay there are several varieties of 



Productus Orthis Bellerophon 



Rhynchonella Donax ? Nautilus 



Lept£eua Xucula • Murchisonia 



Terebratula Pecten Littorina 



Spirifer Mytilus Goniatites 



Strophomena ]\Iodiola Turritella 



Lingula Uuio 



Professor ^Jtlelville has kindly promised to name all my shells more 

 accurately, for which purpose he has my collection with him in Ireland, 

 so that I am only enabled to lay a very general list before my readers. 

 I trust, however, that a more extended search will be made throughout 

 the whole of this very interesting field, and I feel assured that nobody 

 will be loser by devoting a little time in the patient investigation of 

 this subject. 



THE PRACTICAL APPLICATION OF GEOLOGY IN 

 COAL-SEEKING. 

 By James Euckman, F.G.S., F.L.S., F.S.A., 



Professor of Natural History in the Royal Agricultural College of Cirencester. 



Seaeches-g for coal is, not only at home but also abroad, a serious sub - 

 ject, and one in which the practical utility of connecting geological 

 knowledge with active operations is particularly obvious, and which 

 from actual experience I can well illustrate by many interesting cases 

 which have come under my own notice. The first determinations in 

 a coal " adventure " may be classified as follows : — 



1. Where coal is not. 2. Where coal may he, hut at too great a depth 

 forworldng. 3. Where coal may he found convenient for worhing. 4. Its 

 qiiality and extent. 



In order to make what follows the more iDteresting, we may premise, 

 what every Geologist now knows— that the earth is made up of strata 



