326 



of atmosphere, streams and pools, as related to the geographic 

 distribution of Mclania. 



Prof. MacCaughey took barometric and anemoromic observa- 

 tions ; made a photographic record of the region traversed, and 

 collected algae and liverworts. 



Air. Shaw collected spermatophytes, giving particular heed to 

 Lobeliaceae. At 10:20 a. m., December 16, the party left Ho- 

 nolulu for Wahiawa, on Oahu Railway train. 



At 12 m. the party left Wahiawa Station and started uianka 

 along the main road running towards the Koolaus. The sky 

 was clear, with cumulus clouds heaped along the main ridge of 

 the Koolaus. 



After proceeding along the road for a mile, we stopped and 

 lunched. A pleasant breeze was blowing; the anemometer gave 

 a reading of 880 feet in 2 minutes, or 440 feet per minute. The 

 barometer showed an elevation of 1050 feet. 



After lunch we proceeded iiiauka, striking the "headgatcs" trail 

 at the end of the road, and following it. The army engineers 

 have improved this trail by clearing it, and by making "corduroy" 

 pathway over the most boggy places. Painted guide signs have 

 been placed at suitable intervals. One of these signs, marked 

 "To Kahana," is placed at a bifurcation in the trail — that to the 

 right hand being cut, but not graded, and leading up towards the 

 upper side of the valley ; the other, leading downward towards 

 the stream to the left, is both cut and graded, and is the "head- 

 gates trail," leading to the cabin at the intake. 



This fork in the trail is of considerable importance to the 

 traveler, for at this fork one chooses between two trails up to 

 the Kahana pali. The left-hand branch leads to the cabin, which 

 affords shelter for the night. The grade is easy to the cabin, and 

 the trail from the cabin to the pali consists of two hours' wading 

 uj) a cold and rocky stream, and then a hard scramble up a steep 

 and jungle-grown "hogback" ridge to the pali. The right-hand 

 Ijranch leads up to the ridge that bounds the valle\ to the right. 

 To follow this ridge U]) the pali means much up and down travel, 

 and no shelter at night. 



We took the right-hand branch, and followed it along the ridge 

 crest until 5 p. m. At this time we decided to i)itch cam]), and 

 in order to find a suitable ])lace near water, dro])ped down a side 

 spur to the left. The ])oinl at which we left the main ridge to 

 descend the side spur has an elevation of 2000 feet. W'e marked 

 it with a conspicuous Ijlaze (two crosses to the lett). At this 

 point, if we had known what lay ahead, we should not liave de- 

 scended at this place, for thi' next morning, aftei- 1 ' | hours' travel 

 on along the ridge, we came to an Army sign, "To water. 200 

 yards l)elow the trail." If we liad known of this camping ])lace, 

 we wovild have hastenetl to it. 



However, we descended as before descril)ed, and after fifteen 



