applescript, iphoto; how to select more than one objects of an album

-- the following script selects one photo:

tell application "iPhoto"

select photo id 4.294967471E+9

end tell

--

-- the following script does not select any photo;

tell application "iPhoto"

select {photo id 4.294967471E+9, photo id 4.294967473E+9}

endtell

--

-- how do I have to select a list of photos?

MacBook Pro

Mac OS 10.10.4

iPhoto Version 9.6.1

Skript-Editor Version 2.7

AppleScript 2.4