The determination of the time between excitation and emission for certain fluorescent solids This book, "The determination of the time between excitation and emission for certain fluorescent solids", by Philip Frederick Gottling, is a replication of a book originally published before 1923. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.