Research shows the success of a bacterial community depends on its shape.
John Hamer, 64, of Center Harbor, NH, a retired technician at Lincoln Laboratory, died on July 1. Mr. Hamer worked at MIT from 1980 until his retirement in 1990. He leaves his mother; two daughters, Susan Hamer and Laurel Walsh; and three sons, Mark and Scott Hamer and Scott Gould.
Edward N. Ricker
Edward N. Ricker, 81, of Roxbury, a retired mechanic in the Housing Service, died on July 27. Mr. Ricker worked at MIT from 1946 until his retirement in 1978. He is survived by a daughter, Marie Nichols; a sister, Mamie Gillyourd; three grandchildren, and several nieces and nephews.
A version of this article appeared in the August 31, 1994 issue of MIT Tech Talk (Volume 39, Number 3).