Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Verbal indications
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


Verbal indications

b. 1

composition: WN 37, Lento con gran espressione

 in A1, IJ & CK (→CB)

No indication in CJ

in EL

..

 in A1 is one of the three only verbal indications in b. 1-20 (along with con forza in b. 15 and  in b. 18). The number of other dynamic markings is also significantly lower – see b. 6-7.
The absence of the indication in CJ is an oversight – it is present in CK and IJ, based on [A2], just like CJ in EL is an arbitrary change of Kolberg or the publisher.

category imprint: Differences between sources

issues: Errors of JC , Revisions in EL

b. 1

composition: WN 37, Lento con gran espressione

No indication in A1

Lento con gran espressione in CJ, CK (→CB) & EL

..

In A1, which is of working nature, Chopin had not determined the piece's tempo or mood yet.

category imprint: Differences between sources; Corrections & alterations

issues: Revisions in EL

b. 6

composition: WN 37, Lento con gran espressione

No indication in A1 & CB

lega. in CJ

leg. in CK

legg. in EL

legato suggested by the editors

..

By the end of b. 6 both sources based on [A2] – CJ and CK – convey an abbreviation of an indication, which, taking into account the context, we decipher as legato. (IJ features agit., which must be a mistake, yet it confirms that the Chopinesque entry in [A2] was probably indistinct.) In EL the generally uncommon abbreviation leg. was replaced by legg., which must be a mistake. In the main text we move this indication, referring to the accompaniment figures that are not encompassed with slurs, to the beginning of the bar, where first such figures appear.

category imprint: Interpretations within context; Differences between sources; Editorial revisions

issues: Revisions in EL

b. 14

composition: WN 37, Lento con gran espressione

No indication in A1

cresc. in CJ, CK (→CB) & EL

category imprint: Differences between sources; Corrections & alterations

b. 18

composition: WN 37, Lento con gran espressione

in A1

con forza in CJ

No indication in CK (→CB) & EL

..

In the main text we give the indication con forza, which in [A2] (→CJ) most probably replaced the previous  mark. The absence of con forza in CK (→CB) and EL is probably Kolberg's oversight, who also overlooked the  hairpin here.

category imprint: Differences between sources; Corrections & alterations