Many of the most important images in "Did You Wonder Who Fired the Gun?" are black screens — Wilkerson blanks out the image only briefly, but notably — because the images that Wilkerson finds are only substitutes, and inadequate ones, for those that don't exist.
For instance, many in France have not distinguished between "contaminated" and "genetically modified," foodstuffs, with one paper predicting darkly that the English, already feeding their animals with soybeans from America, are only substituting plague for cholera, implying the French should not make the same mistake.
There are only substituting mutations, but no insertions among the sequenced mutated genes.
As shown in Fig. 3C, the arginine residue at this position is not highly conserved in different species although it is only substituted by lysine which is a similarly charged residue.
On the first weekend, he was in the starting 11 in a defeat by Ipswich, but was only a substitute in the next Premiership game against Arsenal.
The namesake, St. Julien Marshall, was only a substitute end on the football team, however, while the future Chief of Staff was what is called by sportswriters a tower of strength in the line.
Gary Cahill was only a substitute at Goodison Park while Branislav Ivanovic, so reliable for so long, has seen his form collapse.
James Morrison was only a substitute for West Brom against Chelsea, while fellow midfielder James McArthur was on the Wigan Athletic bench until the final seconds against Yeovil Town.
But he was only a substitute for a high-profile Champions League fixture at Real Madrid and for the Premier League visit of Stoke City.
Hooper said that he was only getting substitute appearances for the last few minutes of games and that he wanted to move.
