diff --git a/images/FIG54A.png b/images/FIG54A.png deleted file mode 100644 index 2f7fbc1..0000000 Binary files a/images/FIG54A.png and /dev/null differ diff --git a/images/FIG54B.png b/images/FIG54B.png deleted file mode 100644 index 851d007..0000000 Binary files a/images/FIG54B.png and /dev/null differ diff --git a/images/Fig411.png b/images/Fig411.png deleted file mode 100644 index fc0c573..0000000 Binary files a/images/Fig411.png and /dev/null differ diff --git a/images/Fig48.png b/images/Fig48.png deleted file mode 100644 index f98c59c..0000000 Binary files a/images/Fig48.png and /dev/null differ