evidence other than the shadow. It must have been in May, as the
immature condition of the foliage shows. But even if it had been
in July, that would be far from the date you allege. Why, I could
even tell you the year. Then, too, I could look up the weather
records and tell something from them. I can really answer, with an
assurance and accuracy superior to the photographer himself, if
you could produce him and he were honest, as to the real date. The
original picture, aside from being doctored, was actually taken
last May. Science is not fallible, but exact in this matter."

Kennedy felt that he had scored a palpable hit. Dorgan was
speechless. Still, Craig hurried on.

"But, you may ask, how about the automobile picture? That also is
an unblushing fake. Of course I must prove that. In the first
place you know that the general public has come to recognize the
distortion of a photograph as denoting speed. A picture of a car
in a race that doesn't lean is rejected. People demand to see
speed, speed, more speed, even in pictures. Distortion does indeed
show speed, but that, too, can be faked.

"Almost everyone knows that the image is projected upside down by
the lens on the plate, and that the bottom of the picture is taken
before the top. The camera mechanism admits light, which makes the
picture, in the manner of a roller blind curtain. The slit travels
from the top to the bottom and, the image on the plate being
projected upside down, the bottom of the object appears on the top
of the plate. For instance, the wheels are taken before the head
of the driver. If the car is moving quickly, the image moves on
the plate and each successive part is taken a little in advance of