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The joining of macrofibers to produce aggregate structures. 16 frames from film sequence 1 illustrate the joining of 10 right-handed FJ7 macrofibers to produce two aggregate structures. The time course of development was as follows: frame 1 = time 0. The following frames in order given in minutes after frame 1 = 6, 14, 18, 23, 28, 37, 48, 82,91,106,126,135, 154, 159, 167.
