Cette Culotte Manquait Au Trousseu De Bleuette

Cut out the pattern - placing the right side line A/C on the grain/fold of wool fabric. 
Cut remaining edges...
With RST, sew between A/C on cut edge - with a french seam technique.
Sew outer leg seam on both sides - using french seaming technique.
Narrow hem to bottom of each pant leg.
Finish inner leg seam - using french seaming technique.
Attach a piece of elastic from side to inner seam on bottom of each pant leg.
Fold down top for elastic casing - insert elastic to fit.