Looking at the book "They Became Americans: Finding Naturalization Records and Ethnic Origins" there is a section on page 161 about Certificates of Arrival. It says:
Loretta Dennis Szucs, "They Became Americans: Finding Naturalization Records and Ethnic Origins," Ancestry Inc., 1998, page 161.
Manifest, S.S. Majestic, 25 November 1908, page 11, line 16, for Alfred Wm. Wilson (age 2), digital image, New York Passenger Lists, 1820-1957 [database on-line]. Provo, UT, USA: The Generations Network, Inc., 2006. Original data: Year: 1908; Microfilm serial: T715; Microfilm roll: T715_1174; Image 11, Line: 16 (http://www.ancestry.com/, accessed 5 December 2007).