Cricket, Here's a site I found recently...scroll down to "mounting". The "waterbased woodworking adhesive" would be Elmer's Glue, which I've used for dried arrangement/collage work and like because it can be easily thinned with water, is cheap and easily available. josh

Here is a link that might be useful: Herbarium

Just wanted to add one more reference. Unfortunately they don't specify what type glue is used but if I were preparing a herbarium I'd email them for info on what they use.

I envy you...I love the old herbarium sheets and am so fortunate that I can now find them online. Good luck with your work. josh

Here is a link that might be useful: MOBOT Herbarium Info

And here's a site that offers an assortment of herbarium adhesives:

Here is a link that might be useful: Herbarium Supply Company

Thanks Josh and Neil! Looks like the Herbarium Supply Company actually sells the type of glue used by the Missouri Botanical Garden, so that works out great. I visited the Botanical Garden once several years ago, before I really knew I was this interested in plants and preservation, and even then it was a lot of fun and most impressive.

I really appreciate your help! Thanks again!

Cricket