1 “...No part of the Hertzsprung-Russell diagram shows a more pronounced diversity of stellar types than...”

2 “.... In particular the observable part of the solar spectrum tremen­ dously enlarged since the introduction...”

3 “... commissions had each only one meeting, during part of a morning or afternoon; some commissions did not meet...”

4 “... printed in this Volume represent only a minor part of all matter dealt with at the XIVth General Assembly...”

5 “..., with the purpose to establish a new, and if possible, generally acceptable working model for the quiet parts...”