diff --git a/2016-09-17-lecture01.md b/2016-09-17-lecture01.md
index 4ff57e0..eca1cb0 100644
--- a/2016-09-17-lecture01.md
+++ b/2016-09-17-lecture01.md
@@ -42,7 +42,7 @@ REASON YOU CANNOT ENROLL:
 * Zoom object: `alt/option–click`
 * Print: `...lecture.html?print-pdf`
 
-Recommend browser is Chrome on a laptop/PC. Menu may not work properly in Safari and iOS. Other features (e.g. Zoom object) may not work on tablet/touch screen devices.
+Recommend browser is Chrome on a laptop/PC. Some features (e.g. Zoom object or overview) may not work on tablet/touch screen devices.
 
 ---
 
@@ -322,15 +322,14 @@ making, vision, brain machine interfaces
 
 <div><iframe src="https://www.youtube.com/embed/L2O58QfObus" width="420" height="315"></iframe><figcaption>Rhesus monkey mind controlled wheelchair</figcaption></div>
 
-
 <!-- 
 <div style="float:left;"><figure style="display:inline-table;"><img src="figs/1f412_3fc8278.svg" height="200px"><figcaption style="display:table-caption; caption-side:bottom;">Cats– visual system function, locomotion</figcaption></figure></div>
 
 <div style="float:left;"><figure style="display:inline-table;"><img src="figs/1f412_f738dec.svg" height="200px"><figcaption style="display:table-caption; caption-side:bottom;">Non-human primates– attention, decision making, vision, brain machine interfaces</figcaption></figure></div>
 
 <div style="width:430px; float:left;"><iframe src="https://www.youtube.com/embed/L2O58QfObus" width="420" height="315"></iframe><figcaption>Rhesus monkey mind controlled wheelchair</figcaption></div>
-
  -->
+
 Note:
 
 Research with cats was critical for work from the 1950s to 1980s that allowed neuroscientist to learn how visual signals are processed in the highest circuits of the mammalian brain.
@@ -339,7 +338,6 @@ And research with rhesus monkeys has been essential for learning about perceptua
 
 3rs: Replacement, Reduction, and Refinement
 
-
 ---
 
 ## Brain lesion patients
@@ -795,9 +793,10 @@ Note:
 ## Example morphologies– retinal neurons
 
 <div><figcaption class="big">retinal bipolar cell</figcaption><img src="figs/Neuroscience5e-Fig-01.02-1R-retinal-bipolar-cell_2258689.jpg" height="200px"><figcaption>Neuroscience 5e Fig. 1.2</figcaption></div>
-<div><figcaption class="big">retinal ganglion cell</figcaption><img src="figs/Neuroscience5e-Fig-01.02-2R-_retinal-ganglion-cell_358d3cf.jpg" height="200px"><figcaption>Neuroscience 5e Fig. 1.2</figcaption></div>
+<div><figcaption class="big">retinal ganglion cell</figcaption><img src="figs/Neuroscience5e-Fig-01.02-2R-_retinal-ganglion-cell_264413e.png" height="200px"><figcaption>Neuroscience 5e Fig. 1.2</figcaption></div>
 <div><figcaption class="big">retinal amacrine cell</figcaption><img src="figs/Neuroscience5e-Fig-01.02-2R-retinal-amacrine-cell_579ab04.jpg" height="200px"><figcaption>Neuroscience 5e Fig. 1.2</figcaption></div>
 
+
 Note:
 
 ?Grab Coombs et al., 2006 figures...