Mellotronists

I know one album of Herbie Hancock at least where Mellotron is stated on the cover 
(but not featured very obviously), and the first album of "Jazz Mandolin Project" (which 
is, too, a more or less rare instrument in Jazz!) the bass player is credited to use it, 
but I have never found out for what...! Maybe he used it for SFX? Anybody has this 
record, too? 

Thomas