stitution was more robust than it had been for years. They lived in the open much of the time; their fare was plain and mostly

lie down during the day while in the workshop. The Professor was always at his side during these periods, and while he had no instrum

ere fever?" was George's inquir

whether there is any change we must at

glass, and even if we had, ho

e, we must make a s

ve something wh

, say two inches long, and bend it in the form of a C. In

C-shaped piece. The next thing is to make a pointer (B) nearly as long as the base, pointed at one end, and provided with two holes at the other. The pointer is attached to the base by a pin (D). One end of the C-shaped piece of metal is then hinged to

. Therm

hermometer show the exact de

nearly as

t we make

taken as one point in the scale. For zero he took the lowest temperature observed by him in the year 1709. As the temperature of his body was 86 he made a scale with 86 degrees on it, and then when he observed ic

another scale to

ermined by taking the freezing and the boiling points of water,

ere was about 65, as nearly as the Professor could judge, but when the C-shaped piece was held in the palm of the hand, the pointer moved to the lower edge of the base piece, and

Harry could be determined, and it registered 102 degrees. It might be that Harry's temper

so we can pretty well determine, within a range

. He explained that the temperature of youth is normally greater than old age, but

to enable us to ascertain whether Harry'

y in which we can fin

e constipated; and thirst, loss of appetite, headache, and vague pains are felt. When the temperature goes

ped piece should try to straighten i

metal on the outside of the bend. As the application of heat expands the metal, the contracted particles of the metal on the inside o

r is forced through under pressure it will straighte

or in the most direct way. If, therefore, there is a crook in the pipe the water tries to straighten it out. Steam gauges are made of flattened spirally coiled tubes

higher than the previous day, and the Professor advised th

is a first-class fever medicine and tonic. Do you think you c

ig leaves at the bottom which gradually grow smaller, a

the roots, and peel them, then scrape a

bsence of regular fever medicines

ore morning, and by persistently taking th

de for illness, which is sure to come to all at most unexpected times. It had also a stimulating e

, and the Cataract stream had risen so high that their water wheel had been out of commission for

ge's first suggestion, one morning, shortly after Harry's recovery. "We might

turned out, as previously told, but no steps had been taken toward making a battery which wou

oast line to the southeast of us, as we have never been in th

, where the bay indented the land. The coast was reached within two hours, a great deal of the time en rout

of a mile, and to the south of this was the mouth of the South River. As they had definitely planned to go nor

tervals small trees and bushes grew close to the ocean on the

Cataract home to the beach, and principally for the reason that other foods were so plentiful. Harry wanted som

pped the bag and ran to the brush. The Professor looked on in wonder. When Harry disappeare

u think I h

queried George,

our b

he boat which they had left at the foot of the falls in the South Rive

eft branches of shrubbery which also held other debris, and furthermore

the most likely explanation would be that high water coming

rward end of the boat. "Who tied on that rope? It really does look as t

we had on the boat, in wh

a rope entirely unlike any we have had, and i

greater mystery now than

the forest; the branded bull, all indicated that people had, at various times, visited the island. But the finding of their boat, with the positive evidence furnished by the oar

onsent, agreed that the boat must be taken home, and it was finally decided that the boys should pilot it around the point, pas

assured them that the water would close up the joints before long. The Professor, himself, drove the team to the Cataract, and after unyoking them

ied around the oars. It will be remembered that the boat had been fitted with a mast and a sail. Those had been removed, as well as the crosspiece and the brace which held them in place. It was, therefore,

eriously interfere with their progress, but it was sufficient to induce them to take a cour

t George's attention was directe

hat up on

he direction of George's extended arm

irst. A miscalculation was made, in the attempt to reach the object, which was not visible from their locat

had quickened, and they realized their carelessness in securing it at the landing place, and before George, w

m the spot where they were cast ashore months before. Innumerable large rocks, detached from each other, formed the immense tier of sentinels for this

swimmer, and he doubted his ability to make the trip across the c

the object we saw whi

ld like to know how w

be so careless about our boat

found a way which led them up the cra

Harry's excited cry. "Tha

parently been broken in two, and they saw only the stern of the boat held within a saddle of the rock; and how,

k this part

uld, but how can

tide, and the waters had receded, so that the wrecked boat was now fully twenty-five feet from the water. It was held within a wedge in the rocks, tilted up, an

e the only course now available. Every vestige of the locker, or seats, or other a

useless as a means of sustaining the vessel; nevertheless, it was a means by which they might reach land, as they felt sure it would not sink. Here was another difficulty. They had neither oar nor other means of propelling it to shore. After considerable effort a portion of t

ve observation to make: "I am going to see that

rry. "I should like to know how you are going to do it. I don't see any ropes aro

it up. I am tired of losing things in this way.

ck that evening when, going down from Observation Hill, he heard voices in the distance, and recogn

ting details of the story involved without any sequence just as we might exp

he other one. You are having en