On the nature of the carbohydrates found in the Jerusalem artichoke

IN spite of repeated investigations, divergencies still exist as to the nature and relative proportions of the carbohydrates found in the tubers of the Jerusalem artichoke (Helianthus tuberosus).The most detailed account of these carbohydrates has been given by Tanret [1893], who carried out investigations with tubers gathered in Sep- tember and October.