[36] _Tyrannus verticalis_, SAY.--_Head_ above pure pale plumbeous; _vertex_ with a bright orange spot; _back_ pale plumbeous, very slightly tinged with olivaceous; _wings_ brown; tertials margined exteriorly with white; inner webs of the primaries towards the base whitish, narrowed at their tips, the first feather remarkably so; _tail coverts_ and _tail_ deep brown black; exterior web of the lateral tail feather white; a dusky line before the eye; _chin_ whitish; _neck_ beneath, colour of the head; _breast_, _belly_, and _inferior tail coverts_ bright yellow; _bill_ furnished with clusters above, and each side at base; _superior mandible_ perfectly rectilinear above, from the base to near the tip, where it rather suddenly curves much downward. Total length 8 inches; bill from the anterior edge of the nostrils to tip 11/20 of an inch.--JAMES. [37] There are no fewer than fifteen peaks within the state of Colorado which exceed Pike's Peak in altitude.--ED. [38] The results of several sets of observations gave us the position of this encampment, 38° 12′ 22″ north latitude, and 103° 46′ 15″ west longitude from Greenwich, or 26° 46′ 15″ from Washington.--JAMES. [39] Thomas Pennant (1726-98) was the author of _British Zoölogy_ (London, 1766), _History of Quadrupeds_ (1781), and other works on natural science. Those mentioned were held in high estimation, and passed through several editions.--ED. [40] Pike's "First Fork" is Purgatory River, as given on the map (see _post_, note 47). Eighteen miles above the mouth of the Purgatory would fix the camp of July 21-23 near Timpas Creek, which flows northeast through Las Animas and Otero counties to the Arkansas, near the present town of La Junta. The camp was, however, probably several miles farther up the Arkansas, as the party had that morning passed the Huerfano, about sixty miles above the Purgatory, and had travelled twenty-six miles during the day.--ED. [41] See volume xvii.--ED. [42] R. _Tagetes_, JAMES.--Hirsute stem much branched, somewhat grooved; radical leaves subentive, spatulate, linear, or pinnatified; cauline leaves interruptedly pinnatified; the divisions irregular in form and position, but usually linear branches alternate or scattered; peduncles grooved short, few-flowered terminal; ray florets [5/8] recurved red brown; disk dark brown, receptacle columnar, but proportionably much shorter than that of R. columnaris, to which species the one under consideration is allied. Plant about twelve inches high, growing in clusters, and having, by its numerous branches and finely divided leaves, a remote resemblance to anthemis cotula.--JAMES.