Gardeners tallies – Could not a course canvass be coated with an aluminous soapy compound insoluble in water but melting by application of a los heat using some O G with it to take off greasiness – To be written upon with ordinary ink & when dry the heat to be applied till the composition is sufficiently melted to fix the writing – could be made on canvass preparing frames and afterwd cut to the required sizes (Waxcloth)