while a peak in the
center flamed like a stupendous tiara incrusted with selected gems.

Eager to see what these crystals were, the car was now allowed rapidly
to drop into the interior of the crater. With great caution we brought
it to rest upon the blazing ground, for the sharp edges of the crystals
would certainly have torn the metallic sides of the car if it had come
into violent contact with them.

Donning our air-tight suits and stepping carefully out upon this
wonderful footing we attempted to detach some of the crystals. Many of
them were firmly fastened, but a few--some of astonishing size--were
readily loosened.

A moment's inspection showed that we had stumbled upon the most
marvelous work of the forces of crystalization that human eyes had ever
rested upon. Some time in the past history of the moon there had been an
enormous outflow of molten material from the crater. This had overspread
the walls and partially filled up the interior, and later its surface
had flowered into gems, as thick as blossoms in a bed of pansies.

The whole mass flashed prismatic rays of indescribable beauty and
intensity. We gazed at first speechless with amazement.

"It cannot be, surely it cannot be," said Professor Moissan at length.

"But it is," said another member of the party.

"Are these diamonds?" asked a third.

"I cannot yet tell," replied the Professor. "They have the brilliancy of
diamonds, but they may be something else."

"Moon jewels," suggested a third.

"And worth untold millions, whatever they are," remarked another. These
magnificent crystals, some of which appeared to be almost flawless,
varied in size from the dimensions of a hazelnut to geometrical solids
several inches in diameter. We carefully selected as many as it was
convenient to carry and placed them in the car for future examination.
We had solved another long standing lunar problem and had, perhaps,
opened up an inexhaustible future mine of wealth which might eventually
go far toward reimbursing the earth for the damage which it had suffered
from the invasion of the Martians.

On returning to Cape Heraclides we found that the other expeditions had
arrived at the rendezvous ahead of us. Their members had wonderful
stories to tell of what they had seen, but nothing caused quite so much
astonishment as that which we had to tell and to show.

The party which had gone to visit Plato and the lunar Alps brought back,
however, information which,