■26' 



tne western end; small stream runs tlie entire length from east to west; 

 another much smaller stream from a spring enters on the north side, 

 spreads out fan-shaped and joins the main stream. A small marsh in 

 one part of (luarry. Heavy woodland on the south. 



Quariy ('.—Very little larger than B and about twenty or twenty-five 

 years old. Extending north and south; tirst work at north end; small 

 stream runs through north end; large pond in south end. Almost sur- 

 rounded l»y thiu woodland. 



Fiir. 1. 



There is no soil in these quarries except the small amoiuit incidentally 

 carried in liy the workmen. l)y the wind. l)y the streams: and the pow- 

 dered limestone soil, the result of lilastiug and crushing. 



Although there may he many factors bringing seeds into the (juarry. 

 the two principal ones are T\ind and water. 



Tlie order in which the plants appear in these quarries is as follows: 

 Algae, lichens, mosses, scouring rushes, monocotyledons and dicotyledons. 



