50, 100 & 150 YEARS AGO.

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    • Abstract:
      The article focuses on several articles published in previous issues of the periodical. Topics discussed include computer ILLIAC IV, which was nearing completion 1971, was the fourth generation in a line of advanced machines that have been conceived and developed at the University of Illinois; bird trade seems to be in a flourishing condition and question of propulsion beyond the predominating gravitational influence of the earth save for a projectile fired.