INTRODUCTION. _ XXII 



In all cases when the diameters of trees are given, the measure- 

 ments were made three feet above the ground. 



The following localities need special mention: The Fish Pond, 

 on Hogadone Road near Butterworth Avenue; the Plaster Cave, 

 near the Eagle Plaster Mills; Feakin's Marsh, north of Plaster 

 Creek on Buchanan Street, South Grand Rapids. 



Emma J. Cole, 

 January, 191)1. (rrand HapidH. Michigan. 



