the third meeting of the wireless institute of queensland was held in the p.p.l. rooms, kent's building on thursday, 23 may 1912. about 50 members were present. rockwell delivered a very interesting lecture on "electric and magnetic wave motion and production," and exhibited to the members an ascending helix, the function and directions for the construction of which he clearly explained. he noted that in two months time, when the full complement of his wireless outfit would arrive from sydney, and when the institute would have a properly equipped room; every alternative meeting would be devoted to practice in wireless operating. the meeting concluded with a hearty vote of thanks to the lecturer.