今度は Brown Corpus。カンマのはずが、ピリオドになっている。
以下の２行目「particles」の後ろ。

J08 0540 in defense considerations. The smaller the particle the further it will
J08 0550 travel downwind before settling out. An aerosol of such small particles.
J08 0560 moreover, diffuses through structures in much the same manner as
J08 0570 a gas. There may be a number of secondary effects resulting from diffusion