716 
§ 4. In this part of the sky eight regions, bounded by irregular 
polygones, were more closely examined: A and B comprise about 
the two darkest regions of absorption 3"20m + 34° and 430™ + 26°; 
C, D, E, and F lie to the North, the East and the South around 
B, and contain regions with few stars, that are partly darkely traced 
on the chart of Dyson and Me.orte; and G and H are richer 
regions with centra 3'40™ + 27° and 4h4m + 32°. For the regions 
E and F 21° and 25° were taken as limits of declination, in order 
that the Paris results might be used. For each of these fields the 
B. D. stars were counted and divided by the area (for /# 5 stars 
up to 6,5, 3 of 6,6—8,0 and 3 of 8,1—9.0 were subtracted as 
Hyades-stars). In the same manner the average density for Paris 
was calculated. For the FRANKLIN-ADAMs plates average values were 
calculated from the density-figures on the chart of D. and M. 
A B C D. E F Fe | H 
—— EE — 
surface. 28.3 | 266 | 210 | 295 | 240 | 368 | 399 | 462 
gal. lat. aje | 13e | ge | g° | go | tec | Stee 
—65 | 032} 023| 019] 0.20) 0.12] 0.19) 0.07) 0.30 
B.D. | | 
oer | -80| LO) 060] 105) 088} 067) 087) 093) 123 
square | — 9,0 3.82 2.03 | 2.86 3.29 3d 293 | 4.14) 5.07 
degree 
—9,5 | 10 6 10 8 15 u 1 Se 
Paris per sq. d. 40.4 36.1 
Fr.-A. p. 100 | 96 | 93 | 13 15 18 113 | 24 26 
log N’ (6,6) | 951 | 936| 928 | 9.30| 9.08] 928| 985| 948 
» (@1 | 0.04] 9718| 002| 9.94] 983| 9.94] 9,97 | 0.09 
_ @4 | ossl os) o46| os2|. 057| 047| 062] 070 
, (12,2) 1.61 | 1.56 | 
» (3,9) | 254} 252| 2617) 213| 281| 261) 294| 297 
log N'/N (6,6) | +0.14 | —0.09 | —0.22 | —0.20 | —0.42 | —0.14 | —0.52 | +-0.04 
» @1) JT 10|— 46] — 27 | = 35} — 44) B 16 
»  9)4)0.| — 17. | =] 57.| = 48) = 43 = B — 34.) — 11 
» (122) — 61 | — 58 | 
050 |— 4 | 4 2 46 2 
| | | | 
In these values for the logarithmic defect the following charac- 
teristics may be noted: 
