The Term “Radian” in Trigonometry

@article{ThomsonTheT,
  title={The Term “Radian” in Trigonometry},
  author={J. Thomson},
  journal={Nature},
  volume={83},
  pages={217-217}
}
DR. THOMAS MUIR, in his letter in NATURE of April 7 (p. 156), corrects the misapprehension implied in the “New English Dictionary,” viz. the supposition that the word “radian” was first introduced in the “Treatise on Natural Philosophy” by Thomson and Tait.