Rachis Rachis Rachis is a biological term for a main axis or "shaft" (from the Greek "ράχις, backbone, spine"). In vertebrates a "rachis" can refer to the series of articulated vertebrae, which encase the spinal cord. In this case the "rachis" usually forms the supporting axis of the body and is then called the spine or vertebral column. "Rachis" can also mean the central shaft of pennaceous feathers. In the gonad of the invertebrate nematode "C. elegans", a "rachis" is the central cell-free core or axis of the gonadal arm of both adult males and hermaphrodites where the germ cells have
Calamus, Iowa Clinton to Clarence, Iowa. It was called the Chicago, Iowa and Nebraska Railroad, later changed to Chicago Northwestern Railroad Co.. In the same year, Joseph D. Fegan was deputized to go to the cross roads of the Stage Coach Lines and the Indian Trails at Syracuse, which had a small stove and a saloon, to establish a post office in 1858. No one could suggest a name and Mr. Fegan asked "Is there no creek or anything?" "Yes, Calamus Creek." "Then let it be Calamus." Due to the large hazardous swamps, the Post Office and railway station were moved to