144 PICTURING MIRACLES 



three days and nights. By that time I had 864 in- 

 dividual 3x4 shadow-graphs. The rose bud had 

 opened into a very beautiful blossom, as had the 

 one in front of the regular camera with just ordinary 

 blue Mazda lights shining on it. 



The negatives from both cameras were developed. 

 The one on standard 35 mm. film with its 864 indi- 

 vidual pictures was fifty-four feet long and was of 

 course easy to develop in the regular way, but the 

 800 X-ray shadow-graphs each 3x4 inches making 

 a film four inches wide and 200 feet long required 

 special equipment to handle. Finally I found a way 

 that worked satisfactorily, but only after a good many 

 experiments were made with dummy strips first. 



The negatives turned out wonderfully well. The 

 exposure was equal and correct throughout and it 

 was especially interesting to watch for the first time 

 what was going on inside the bud while it was open- 

 ing as shown by the long series of shadow-graphs 

 taken at the five-minute intervals. Even one versed 

 in motion pictures could not see much change in 

 consecutive pictures, but looking at every twelfth 

 shadow-graph which would be an hour in the mak- 

 ing, quite a change could be detected. When one 

 works with something entirely new, and this was the 

 first X-ray motion picture made, every point is 

 studied step by step very carefully, including its pho- 



