Regarding the salt and the wood [beis din instituted] that the Kohanim may make use of them;  regarding the [Red] Cow [they instituted] that its ashes be exempt from [the laws of] me’ilah;  and regarding [replacements for] the dis-qual-ified bird-offerings that they should come from the public [treasury].  R’ Yose says: The one who supplies the birds must supply [replacements for] the disqualified ones.