title: Interstellar silicate absorption bands.
abstract: Interstellar silicate absorption is observed in the direction of the galactic centre. Most interstellar silicon seems to be in silicate form.
authors.affiliation: University College, London.
authors.forename: J A
authors.initials: JA
authors.lastname: Hackwell
authors.forename: R D
authors.initials: RD
authors.lastname: Gehrz
authors.forename: N J
authors.initials: NJ
authors.lastname: Woolf