18t JOURNAL OF THE ARNOLD ARBORETUM [vol. ii 



page, 325, line 4, a similar change occurs In H. prostratus in the original, 

 and H. prostrata in the reprint. On page 355, line 14, the original ends 

 with the word *stem,' in the reprint with the word 'branched/ Otlier 

 lines of this page and the following pages indicate that a part of the work 

 was a reset. How much was reprinted, or Iioav much later than the 

 original we do not know. Surely Dr. Gray made some corrections in 

 a reprint, but he never called it a different edition." 



