NOES ON DHE ES xXAMINATION OF A COLLECTION 
OF INTER-GLACIAL WOOD FROM MUIR 
(GLACIER, AILZENS GAN. 
Ar the solicitation of Mr. Harry Fielding Reid I have under- 
taken the examination of a small collection of inter-glacial woods 
obtained by him in the summer of 1892, from the Muir glacier, 
Glacier Bay, Alaska. These woods were mostly found in place 
under glacial drift, and there can therefore be no question as to 
their position. 
The buried woods were also accompanied by a number of 
specimens of living wood from trees found growing at the 
present time near Sitka. With these living trees were specimens 
of the leaves that came from them, but unfortunately all the 
leaves were placed together in a box without numbering, so I 
had no means of connecting the leaves and wood. The wood 
has been identified, however, by comparing the internal struc- 
ture with that of a series of named woods belonging to the 
Sargent collection obtained for the Tenth Census.’ 
I have also taken the liberty of adding to Mr. Reid’s collec- 
tion a single fine specimen of wood obtained by Miss E. R. 
Scidmore of Washington, D.C. This specimen, as I am 
informed by Miss Scidmore, was found protruding from a gravel 
bank which lay beneath an ice-sheet some seventy feet in thick- 
ness, on the eastern moraine of the Muir glacier. As it happens 
to be the only piece of dicotyledonous wood thus far detected 
beneath this glacier, it is of particular interest. 
LIST OF INTER-GLACIAL WOODS WITH BRIEF MACROSCOPIC 
DESCRIPTIONS. 
1. from the burted forest, Muir glacier. 
This consists of a single piece six inches long and, approxi- 
* Tenth Census of the United States, Vol. IX. “The Forest Trees of North 
America.” 
527 
