1893.] Open Letters. 37 
with the request that they serve on such committee: J.C. Arthur, L. 
H. Bailey, N. L. Britton, D. H. Campbell, J. M. Coulter, B. T. Gallo- 
j , B. L. Robinson, William Trelease, L. M. 
Underwood, George Vasey. 
ay I not ask-a hearty support be given to the committee by every 
botanist, to the end that the congress may be every way Se ae 
Cuar.es E. Bessey, Chairman Section G (Botany), A. A. A 
Lesquereux’s Flora of the Dakota Group: A reply. 
In the October number of the Gazerre I find a review of Lesquer- 
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this was precisely what has been do nges made 1m 
the . as submitted by Lesquereux, except such slight verbal ones 
as 0 t eanin ear, are mentioned in 
y arranged.” e plates are divided into 
three series, the first embracing forty-five plates, the second nineteen 
plates, and the third three plates, and the $s are arranged upon 
the manuscript and plates be returned to him. This new material 
added 110 new species and twenty-one plates. Lesquereux left figures 
of these plates, and the remaining three were made under 
ences and cross-references to the plates as thus arranged. To have 
changed this arrangement would not only have involved many errors, 
t 
could not have been reproduced by the mechanical processes required 
at the government printing office, had the two kinds been mixed on 
the same plate . 
