Claude Naiver work on Navier-Stokes equations

[user079622]

I am interested what are main differences/news in two Claude Navier works "Sur les lois des mouvements des fluides, en ayant égard à l’adhésion des molecules"- memoire 1 and "Sur Les Lois du Mouvement des Fluides" memoire-2?

Are both works written(not published) in 1821? Does memoire 1 introduced visocus term μ∇2u?

I cant find pdf of memoire 1..

"Sur Les Lois du Mouvement des Fluides"
https://perso.crans.org/epalle/M2/EC/Histoire/Navier1822MemoireSurLesLoisDuMouvementDesFluides.pdf

Is this formulation(dont have to be same notation) what Navier introduced in 1821 memoire 1?

 

[Baluncore]

https://archive.org/search?query=Claude+Navier

 

[user079622]

https://archive.org/search?query=Claude+Navier

I cant find memoire 1.

Is Navier introduced this formulations(dont have to be same notation) in my first post in 1821 memoire 1?

one more link
https://www.mdpi.com/2311-5521/9/1/15