Cometary Science Newsletter Issue 19 October 2016 http://www.cometarysciencenews.org/ - Conference Announcements + Comets Symposium and Rosetta SWT 2016: Registration + Comet Wirtanen - Observers' Workshop at DPS - Refereed Journal Papers + Fragmentation Kinematics in Comet 332P/Ikeya-Murakami, Jewitt et al. + High-molecular-weight organic matter in the particles of comet 67P/Churyumov–Gerasimenko, Fray, Bardyn, Cottin et al. -- The Cometary Science Newsletter is dedicated to sharing and furthering cometary science. CSN invites contributions from the astronomical and planetary science communities, including abstracts of papers accepted for publication in refereed journals, thesis abstracts, timely notes on particular comets, conference announcements, job announcements, or other relevant and brief scientific communications. Relevant topics include observational, theoretical, and laboratory work concerning comets, but also may include studies of associated phenomena, such as Centaurs, asteroid-comet transition objects, debris disks, and protoplanetary disks.