1881. ] Botany. 735 
spores and microspores of Selaginella; Phanerogamia—(22) pol- 
len, (23) young pistil (sections) and ovules, (24) seeds (sections) 
with embryo zz situ. The specimens should, in some cases, be 
of considerable size, and in every case, where possible, the sexual 
reproductive organs should be clearly shown. The list might 
profitably be much enlarged, while a valuable half set costing 
much less might be made by selecting from the full set, say by 
taking Nos. 1, 2, 5, 8, 12, 16, 17, 19, 20, 22, 23, 24. 
Errata.—Through some delinquency in the U. S. mails, the 
editor of this department failed to receive the proof of the August 
number in time to correct some typographical errors. On p. 653, 
third line, Myxomycetes appears spelled incorrectly; the second 
word in the fourth line should be “fine”; Professor Tuckerman’s 
name appears without an r, for which we beg his pardon; further 
down Dr. Farlow is said to have described “a carpinus which 
grew in a jar of water”! which no doubt made many botanists 
stare with amazement. What we wrote was “coprinus,” a very 
different thing indeed! The additions to the N. A. Flora made 
y Dr. Engelmann, were “ some additions,” not “Iowa additions.” 
A correction should also be made in Dr. Schimper’s paper, p. 
558, fifth line, where “less watery” should be “more watery.” 
imagine yourself within or without the spire, so long as you do 
Not turn yourself round, or stand upon your head.” All will 
agree with him ‘that it does not much matter which way it is 
settled, but that it is of the greatest importance to all botanic 
describers that it should be settled, definitely and finally, one way 
