The table that follows contains the material derived from the measures enumerated in Chapter VIII, and from other sources, bearing on the intensity differences between giants and dwarfs of the same spectral class. All the available estimates have been used. Successive columns give the line, the atom, the predicted behavior, and the observed difference in the sense giant-dwarf, for the Classes , , , , , and . The symbols , , and , following the atom, denote ultimate, neutral, and enhanced lines, respectively. The number of stars contributing to each entry will be seen from the list on p. 119, Chapter VIII. The notation is as follows: 0 = no change; ± 0 = between 0 and 1; ± 1 = between 1 and 2; ± 2 = between 2 and 3; and so on. The values for are taken from Menzel’s measures[423] of Indi and Tauri, “the scale of intensities being (0) no difference, (1) a little stronger [Pg 149] (2) much stronger, (3) very much stronger.” The signs from Menzel’s table are reversed, in accordance with the notation used in the present table. In the column headed are the signs indicating the direction in which the corresponding lines are affected in that class,[424] for which quantitative measures have not been published. The letters “” and “” in the column headed refer to strengthening or weakening of lines, as observed by Baxandall[425] in a comparison of the solar spectrum with that of Capella. Baxandall’s estimates are inserted to supplement the present material. The numerous gaps in the table result from the difficulty of seeing the fainter lines in the dwarf spectrum. TABLE XXIV Line Element Predicted Effect Observed Effect - 0 + 3933 Ca+ * +1 .. .. .. .. 0? + 3944 Al u .. .. +0 + -2 .. .. .. - 3953 Fe n () .. +0 + -2 .. .. .. .. 3961 Al u .. .. +0 + -2 .. .. .. - 3968 Ca+ * +1 .. -1 .. .. 0? + 3999 Ti u .. .. +0 .. -1 .. .. .. .. 4005 Fe n .. .. +0 .. 0 .. .. .. .. 4031 Mn u .. .. -2 -1 -1 .. .. 0 .. 4041 Mn n .. .. -1 -1 -2 .. .. -0 .. 4046 Fe n .. .. -1 -1 0 -1 -1 -2 .. 4064 Fe n .. .. -1 -2 .. +2 0 -2 .. 4068 FeMn n .. .. -1 .. .. +1 -1 .. .. 4072 Fe,- n .. .. 0 +4 .. .. -1 -2 .. 4077 Sr+ * 0 0 +1 s 0 +3 + 4084 Fe n .. .. -1 +1 0 0 .. .. .. 4101 H n .. .. -1 -1 +1 -4 0 -1 + 4132 Fe n .. .. 0 +2 +1 .. +0 -1 .. 4135 Fe n .. .. -1 .. 0 .. +0 .. .. 4144 Fe n .. .. -1 0 +2 0 +0 -1 .. 4167 ? -1 .. -1 -1w 0 .. .. [Pg 150] 4172 Fe+ * +1 +1 +3 +1 +0 .. .. 4177 Fe+ * +1 .. +2 .. .. .. .. 4215 Sr+ * 0 0 +2 +3 +0 +1 + 4227 Ca u .. .. -1 -1 0 -2 -0 -2 - 4247 Sc+ * .. 0 .. +1 .. +1 .. .. 4250 Fe n .. .. 0 -2 -1 -2 -1 -2 .. 4254 Cr u .. .. -1 .. -1 -1 -1 -1 .. 4260 Fe n .. .. -1 -2 -1 -2 .. -1 - 4272 Fe n .. .. -1 -2 .. 0 +0 -1 .. 4275 Br u .. .. -1 .. .. 0 +0 -1 .. 4290 Cr u .. .. 0 -2 0 .. +0 -1 .. 4298 Ti, Ca .. .. -1 -2 0 .. 0 .. .. 4308 Fe n .. .. 0 +1 0 .. .. -1 .. 4315 Fe+ * .. 0 +1 +2 .. .. .. .. 4321 Sc+ * .. +1 .. .. s .. .. .. 4326 Fe n .. .. 0 +1 +1 -2w 0 -2 .. 4340 H n