Bowman's membrane is in the cornea and can be demonstated with a standard periodic acid- Schiff stain. Avian eyes have an extra ring of bone around them that will need decalcification. Paula Pierce, HTL(ASCP)HT Excalibur Pathology, Inc. 631 N. Broadway Moore, OK 73160 405-759-3953 contact <@t> excaliburpathology.com www.excaliburpathology.com