472 HARRY 0. WOOD 



between two and three miles from Pim o Keokeo in a direction a 

 trifle east of north. Just west from here, about a quarter of a mile 

 away, was one of the two larger cinder cones of 191 6. This was a 

 double semicone built on either side of the new rift crack. Both 

 north and south of this new cone were several other new cones. 

 A flow of a-a, undoubtedly of the date of 1907, separated us from 

 the line of vent of the latest activity. 



Though greatly diminished, there was still vigorous action at 

 many points along this line. At first the most active point was a 

 cinder cone near the northeastern base of Puu o Keokeo, between 

 two and three miles almost due south of us (see the photograph, 

 Plate VI, d). Though this was down the wind, which was gentle, 

 however, explosive coughing sounds could be heard at frequent 

 irregular intervals; and occasionally red-hot masses were thrown 

 up into our field of vision. This action continued throughout the 

 evening and the early part of the night. During this interval the 

 glow above this vent was considerable, though less than that 

 ordinarily seen above Halemaumau as viewed from the observatory 

 at about the same distance (yet, through the disturbed air, it 

 appeared to be comparable with this). However, at about 

 8:45 p.m., May 30, a short, sharp earthquake occurred, plainly 

 felt by all three of us sitting or reclining on the cinders in the 

 fissure re-entrant of the old cone. (This shock was felt sharply at 

 Waiohinu and at Kapapala. At Hilea it was felt as the strongest 

 shock of the entire series connected with this eruption.) Within 

 less than a minute, but more than thirty seconds, after this shock 

 there occurred a spasm of greatly increased action at the vent 

 mentioned, with the jetting of lumps of incandescent lava high 

 in the air, and a great increase in the glow. However, the action 

 again quickly subsided to normal. Afterward the action at this 

 vent declined, at first slowly, but toward 1:00 a.m., May 31, more 

 rapidly. By 3:00 a.m. the situation of this vent could barely be 

 made out. When seen again in midafternoon, on May 31, from 

 near Puu o Keokeo, only a smoking cone appeared. There was no 

 revival of activity afterward, so doubtless we witnessed the dying 

 of action at this vent. 



In the late afternoon of May 30 a glowing cone was seen, 

 showing an oven-like orifice, situated at a distance of two hundred 



