Work in the Dakota Group 21 



The specimens were sent to Dr. John Strong 

 Newberry, professor in Columbia University and 

 State Geologist of Ohio. He did not find opportu- 

 nity at that time to publish the results, but long years 

 afterwards, in 1898, I received from Dr. Arthur 

 Hollick a copy of " Later Flora of North America," 

 a posthumous work of Dr. Newberry 's. Turning 

 instantly to the magnificent plates, I recognized 

 some of my early specimens, the first I ever col- 

 lected that were of value to science. 



Although, owing to the long delay in publication, 

 I lost credit for them, and the duplicates which I 

 had given to a friend had been used by Lesquereux 

 to illustrate some new species accredited to that 

 friend instead of to their rightful discoverer, Dr. 

 Newberry kindly acknowledged my work on p. 

 133 of his book, where he says : " The leaf figured 

 on Plate X and that represented on Plate XI were 

 included in a collection made by Charles H. Stern- 

 berg, and Lesquereux has done only justice to him 

 by attaching his name to the finest species contained 

 in the large collection of fossil plants he made 

 there," that is, at Sassafras Hollow. 



In 1872, just before Lesquereux's great work, 

 1 The Cretaceous Flora," appeared, I learned that 

 the famous botanist was a guest of Lieutenant 

 Benteen, the commander of Fort Harker. Fortu- 

 nately, I had retained rough sketches of the first 



