The errors here refer to the book "Handbook of Techniques for the Hamburg School" by Ruth Brummund and Udo Rudolph, 1992 English edition. Some errors are quite minor. If you have this edition, the corrections are:
1) Page 149, the LA and LM are reversed on the dial.
2) Page 151, The LA should be 2LEO41, not 2LEO11.
3) Page 160, the Poseidon symbol is missing from the dial.
4) Page 163 and 164, some more explanation is needed under
(b) On page 164, the four lines of dates shown, are found by subtracting
the distances 3, 7, and 10, and also adding 3, from/to 22deg30 thus:
Page 61 The Saturn/Apollon on the dial in the Pisces sector should be a sum, not a halfsum, ie Correct is SA+AP.
Page 162, 3rd paragraph, Sun,Moon/Hades, not Sun/Moon/Hades,
Page 113, Poseidon line is missing from the Frequency Table.
Many people coming to "Uranian" Astrology don't realise that the system
has been evolving over the last 50 years in Hamburg, and much of the older
methods have now been replaced by techniques that have been well researched
by the Hamburg Study Group, and this book covers many of these methods.