diff --git a/book/chapters/ocean_science.ipynb b/book/chapters/ocean_science.ipynb
index 2694033..72768d2 100644
--- a/book/chapters/ocean_science.ipynb
+++ b/book/chapters/ocean_science.ipynb
@@ -7,8 +7,9 @@
     "## Ocean science\n",
     "\n",
     "<BR>\n",
-    "<img src=\"../img/revelle.jpg\" style=\"float: left;\" alt=\"drawing\" width=\"1200\"/>\n",
-    "<div style=\"clear: left\"><BR>\n",
+    "<img src=\"./revelle.jpg\" style=\"float: left;\" alt=\"drawing\" width=\"1200\"/>\n",
+    "<div style=\"clear: left\">\n",
+    "<BR>\n",
     "\n",
     "    \n",
     "        \n",
diff --git a/book/chapters/revelle.jpg b/book/chapters/revelle.jpg
new file mode 100644
index 0000000..2f2a1d9
Binary files /dev/null and b/book/chapters/revelle.jpg differ