I can see they might be trying to show in the "Mauvaise" position the cello slightly more upright - showing a slight difference, akin to tilting a bow(?).
I can't really see enough difference to call it a separate position, either.
Can't wait to hear what all the cellists here think!
I don't speak French so I have no idea what there is written in this text... Probably something about a good and a bad posture.
These pictures are not so good than they could be, but in the picture in the right he maybe has his left elbow too low and I think that his right wrist is also in a little bit odd position.
That elbow is a little bit tricky, because it really depends on which string you are playing...
The cello on the right appears to be angled too much, facing the right knee too much.
Yes, I was thinking that too, but didn’t know how to say it. 🤔
From Google Translator (Pretty much what you all have been saying)
For Bonne (Good) Position:
The left hand placed near the nut, the first phalanx of the thumb resting under the neck: the fingers should be slightly rounded with the elbow not too high or too far from the rib. The bow must be held close to the rear sight, the stick slightly inclined towards the fingerboard: the wrist slightly rounded: all movements must be made with the forearm.
For Mauvaise (Bad) Position:
We see that all movements are hampered: the fingers appear to be tight on the key, the left elbow is too low, the right wrist is not rounded, but in a way arches: there cannot be, with this position, freedom of movement.
Characterize people by their actions and you will never be fooled by their words.
I can see the small difference in elbow height, but think I'm more confused looking at the picture now that I know the translation! My eyes are terrible but I enlarged the picture and it looks to me like they are not even playing on the same string.
I wonder how many people gave up trying to learn to play the cello because they had to use that book... I remember the book I tried to learn to play the banjo from when I was younger, looked similar/similar time period - let's just say I'm not on a banjo forum.
Thank goodness for Fiddlerman and the Fiddlershop!