I'm going with albumin and distilled water 50:50. Add your vegetation and blend at high speed for 3 - 4 minutes and allow to rest over night in the ice box. Next day, remove any foam on the surface and filter. Take your extremely clean glass plate and steam it over a tea kettle, then pour on your emulsion (the steam helps the albumin spread evenly). Allow the plate to dry. Mount your "negative" over the plate in a printing frame, stick in a sunny window for a few months and you are off to the races...

NWG