CAMBAYUVAH RIVER 
a provoking tickling. A great number of them settled 
along the edges of the eyelids, attracted by the sheen of 
the retina of the eye, into which they gazed with great 
interest. Others, more inquisitive, would explore the 
inside of your ears; while millions — actually millions — 
of plum, the tiny gnats, more impertinent than all the 
others taken together, dashed with great force up your 
nose, into your eyes, into your mouth, and far into your 
ears, and were most troublesome to remove. Your ankles 
and knees and wherever the skin was soft were itching 
terribly with carrapatinhos and before you got through 
with your work, you were also swarming all over with ants 
of all sizes, which careered over your body and inflicted 
painful bites whenever you placed your hand upon your 
clothes to arrest their progress. When you had endured 
the torture long enough, and had managed to take a satis¬ 
factory solar observation, you generally had to remove all 
your clothes in order to get rid of the unpleasant parasites; 
and you then had a good hour’s hard work cut out for you. 
We continued our march northward, the temperature 
in the sun being 105° Fahrenheit. The minimum tem¬ 
perature had been 60° Fahrenheit during the night of 
June seventeenth, and 64° on June eighteenth. We 
crossed the Piraputanga River, flowing into the Rio 
Manso, and then passed over a magnificent flow of yellow, 
red, and black lava, the Cambayuvah River, a tributary 
of the Palmeira. 
The Cambayuvah flowed through a great volcanic 
crack seventy-five feet high, the sides of the crack showing 
much-fissured strata in a vertical position. A smaller 
streamlet entered the Cambayuvah where we crossed it. 
Wonderfully beautiful, indeed, were the rapids among bril¬ 
liantly coloured red and yellow rocks, the water winding its 
way among high, upstanding pillars and sharp blades of 
laminated rock. 
A beautiful waterfall tumbled over with a great noise 
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