Leaf Pack Network® Manual Individual chapters are available as separate PDF files in English and Spanish. The English and Spanish versions of the Leaf Pack Network® Manual are copyright 2010 Stroud Water Research Center, exclusive of images and U.S. Government material reprinted with permission. The Leaf Pack Network® Manual can be used for educational purposes only, maintaining the footer on every page which references it as part of the LPN Manual as well as the Stroud Water Research Center logo. It is not to be duplicated for commercial purposes. Introduction: English Español Background Information: English Español LPN Procedures: English Español LPN Data Sheets: English Español Macroinvertebrate Resources/Key: English Español Learning Activities: English Español Appendix English Español Additional resources en español: Macroinvertebrate photo ID Bug boards