have been lost, but starting with the Ranunculaceae and closing with
the Equisetaceae it would seem to be complete as far as published.
  Eighty-seven species are treated. The paper contains an introduc-
tion, exhorting the reader to the study of botany, and rather extended
directions for the collection and preservation of specimens.
  The author states, "It will not be presumed that I shall confine
myself strictly to the environs of our City, but on the contrary shall
open the whole field of Maine as far as my observations have extended
and the assistance of others in increasing my hortus siccus."
  As an example of the taxonomic treatment and geographical scope
of the paper, we present his account of the three leaved cinquefoil,
then considered rare outside of alpine regions, and unknown to the
author from the vicinity of Bangor.
  POTENTILLA TRIDENTATA Ait. Mountain Cinquefoil. This is an abun-
dant plant on the plains of Brunswick, particularly in the College yard
and I believe has not been found anywhere else' in our state, except on
Mountain tracts. Stems three to six inches high, prostrate, irregular,
crooked and somewhat woody at base; stipules subulate at top below the
leaves, leaves ternate-palmate; leaflets obovate-wedge-form, leathery,
three toothed at the summit, pubescent beneath. Flowers white, in a
sort of corymb, loose few-flowered; petals, oblong-obovate, longer than
the calyx. June and July.
  The paper contains an extended and original account of the colony
of Rhododendron maximum at Standish,2 which by a slip of the pen is
located at the northern rather than the southern end of Sebago Lake.
The most important feature of the document is the report of the
colony of Kalmia latifolia at Cherryfield3 here brought to attention
evidently for the first time.
  The die had been cast, and Aaron submitted his "Specimen sheets"
to his advisor, Dr. Holmes, who was hardly less ambitious than him-
self and fully as generous in respect to geographical limits. Dr.
Holmes wrote very encouragingly in reply, and having been asked for
suggestions gave the advice which seems to have been rather closely
followed in carrying out the field work of the Botanical survey.
                                   "Senate Chamber March 22, 1845.
A. Young, Esq.
  Your letter of 25th., Feb. & the specimen sheet of "Plants of Bangor"
have at length reached me. They were misdirected. I reside in Winthrop
but am stopping this winter with the "servants" of the dear people.
  ' Cf. 1837, J. W. Bailey, Am. Journ. Sci., XXXII. p. 30. "Found It wlthin a few
yards of the ocean at the observatory in Portland."
  ' This station seems first to have been mentioned in print by Jacob Bigelow, 1820,
Medical Botany, III, 402, 408. It had been brought to his attention by " Dr. Eaton."
  x Sec 1913, RHODORA 15, 142; 1931, RHODORA 33, 198-199.


[JANUARY


Rhodora