there's any 
doubt about is whether or not Reonaris means diamonds. I'll ask----" 
At that moment the door of the library, in which Jack and Mark were 
seated, was cautiously opened, and a black, woolly head was thrust in. 
Then two widely-opened eyes gazed at the boys. 
"What's the matter, Washington?" asked Jack, with a laugh. 
"'Scuse me, Massa Jack," answered the colored man, "but did I done 
heah you' to promulgate some conversationess regarding de 
transmigatorability ob diamonds?" 
"Do you mean, were we talking about diamonds?" inquired Mark. 
"Dat's what I done said, Massa Mark." 
"No, you didn't say it, but you meant it, I guess," went on Jack. "Yes, 
we were talking about diamonds, Washington. I know a place that's full 
of them." 
"Where?" inquired the colored man, thrusting his head farther into the 
room, and opening his eyes to their fullest extent. "Ef it ain't violatin' 
no confidences, Massa Jack, would yo' jest kindly mention it to yo's 
truly," and Professor Henderson's faithful servant, who had followed 
him into many dangers, looked at the two boys, who, of late years, had 
shared the labors of the well-known scientist. "Where am dose 
diamonds, Massa Jack?" 
"On the moon," was the answer. 
"On de moon? Ha! Ha! Dat's a joke!" And Washington began to laugh. 
"On de moon! Ha! Ho!" 
"Well, you can read it for yourself," went on the lad, tossing the paper 
over to the colored man. The latter picked it up, gazed at it, first from 
one side, and then from the other. Next he turned it upside down, but, 
as this did not make the article any clearer, he turned the paper back
again. Then he remarked, with a puzzled air: 
"Well, I neber could read without mah glasses, Massa Jack, so I guess 
I'll hab t' let it go until annoder time. Diamonds on de moon, eh? Dat's 
wonderful! I wonder what dey'll be doin' next? But I'se got t' go. 
Diamonds on de moon, eh? Diamonds on de moon!" 
As Washington turned to leave the room, for he had entered it when 
Jack and Mark were talking to aim, the latter lad asked: 
"Did you want to see us about anything particular, Wash?" 
"Why, I suah did," was the reply, "I did come t' tell yo' dat Perfesser 
Henderson would be pleased to hold some conversations wid yo', but 
when Massa Jack done mentioned about dem diamonds, I clean fo'got it. 
Diamonds on de moon, eh?" 
"Well, if the professor wants us we'd better go," suggested Mark. 
"Come on, Jack, and stop dreaming about Reonaris and the moonbeams. 
Get back to earth." 
"All right; laugh if you want to," said Jack sturdily, "but the time will 
come, Mark, when you'll find out that I'm right." 
"How?" asked Mark. 
"I don't know, but I'm sure I can prove what I say." 
The two boys were to have the wonderful diamond story demonstrated 
to them sooner than either expected. Following the colored man, the 
lads, Jack carrying the paper, made their way to the laboratory of 
Professor Henderson. His door was open, and the aged man, whose hair 
and beard were now white with age, was bending over a table covered 
with papers, chemical apparatus, test tubes, alembecs, Bunsen burners, 
globes, and various pieces of apparatus. Another man, not quite so old 
as was Mr. Henderson, was on the point of leaving the apartment. 
"Ah, boys," remarked the older professor, as he caught sight of them, "I
hope I didn't disturb you by sending for you." 
"No; Jack and I were only having a red-hot discussion about diamonds 
on the moon," said Mark, with a laugh. 
"Diamonds on the moon!" exclaimed Professor Henderson. 
"Diamonds on the moon?" repeated his friend, Prof. Santell Roumann. 
"Is this a joke, boys?" 
"Mark thinks so, but I don't!" cried Jack, enthusiastically. "Look here, 
Professor Henderson, and also Mr. Roumann. Here is one of the 
newspapers that we brought back with us in our projectile, the 
Annihilator, after our trip to Mars. I have been translating some of the 
articles in it, and to-night I came across one that told of a trip made by 
some of the inhabitants of Mars to the moon, in a sort of projectile, like 
ours, only more on the design of an aeroplane. 
"They landed on the moon, the article states, and found a big field, or 
deposit, of Reonaris, which I claim are diamonds. Mark says I'm wrong, 
but, Professor Henderson, isn't Reonaris to the Martians what diamonds 
are to us?" 
"It certainly is," agreed the older scientist, and he looked for 
confirmation to his scholarly companion. 
"Reonaris is substantially a diamond," said Professor Roumann. "It has 
the same chemical constitution, and also the diamond's hardness and 
brilliancy. But I don't understand how any diamonds    
    
		
	
	
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