SOILS OF ^'EW YORK 105 



rials with their attendant physical properties. 

 These are : the Dover series derived from the inlluence 

 of igneous rocks and sandstone on calcareous till 

 from the Trenton limestone; the Coloma series from 

 the predominant influence of the Potsdam sandstone*, 

 and the Worth series from the predominant influence 

 of the Hudson Eiver shales and sandstone in their 

 western development where they are horizontally 

 bedded and but slightly metamorphosed but are 

 coupled with the slight influence of igneous material 

 from the Adirondacks and of some materials from 

 the pink Medina sandstone. 



Tlie Dover series is the most important agricultu- 

 rally of the three derived from till in this region. 

 In general character and crop-producing power, it 

 resembles the Ontario series. It usually has a more 

 decided light brown color and a more open, friable 

 structure. 



The soils of the Dover series need more or less 

 drainage. They are also benefited by applications of 

 lime for acid sensitive crops, although the soils are 

 generally strong and durable. The deep subsoil is 

 heavily stocked with limestone fragments and the 

 field stone are largely of that rock. Hay and forage 

 crops are the predominant products. In Franklin 

 County hops were formerly grown mostly on these 

 soils and in northeastern Clinton County apples are 

 produced somewhat extensively. In the production 

 of these two crops, the series shows its relation to 

 the Ontario and Honeoye. In northern Lewis 

 County and the adjacent portions of Jefferson 



