An advertisement in the "Kingston Gazette", Upper Canada, 29 July 1814 mentions (amongst a very long list of goods):
"...plain and figured Jaconette Muslins, Sarsenet do. Leon and Book do. Muslinettes, [illegible] Cambrick, black Muslin mourning Fans...Muslin Trimmings...."
["do." standing for "ditto]
Remininces of a woman who lived on a farm in Upper Canada about this time mentions getting various items from a travelling pedlar. Amongst various cloths, ribbons and pins: "a piece of Book muslin at 16 and 18 shillings a yard." She likely means New York shillings, which were 1/8th of a Dollar [as in pieces of eight]. I've seen one exchange rate as $1 to 4s/6d.
If comparing to prices in NA, remember this is for imported goods, plus the peddlar's markup on small purchases.
Jason E.