<span style="color:#3CB371">Apparatus:</span>
 
<span style="color:#3CB371">Apparatus:</span>
   −
pila AC e f | pilla B
+
pila AC ef | pilla B
   −
moratrius (-ri''us'' A) AC | mortarium (-riũ B e) B e f
+
moratrius (-ri''us'' A) AC | mortarium (-riũ B e) B ef
       
<span style="color:#3CB371">Commentary:</span>
 
<span style="color:#3CB371">Commentary:</span>