Index: ps/trunk/binaries/data/mods/public/simulation/data/technologies/civbonuses/ptol_structures.json
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/data/technologies/civbonuses/ptol_structures.json
+++ ps/trunk/binaries/data/mods/public/simulation/data/technologies/civbonuses/ptol_structures.json
@@ -0,0 +1,18 @@
+{
+	"genericName": "Sun-dried Mud Bricks",
+	"autoResearch": true,
+	"description": "Sun-dried mud bricks were a common building material in hot and dry areas, especially where wood was scarce. Although not as strong and durable as fired bricks or natural stone and vulnerable to constant rains and heavy floods, mud bricks have the advantage they are cheap and easy to produce.",
+	"requirements": {
+		"any": [
+			{ "civ": "ptol" }
+		]
+	},
+	"icon": "stone_blocks_brown.png",
+	"tooltip": "Houses and Economic Structures −50% wood cost, but +50% build time.",
+	"modifications": [
+		{ "value": "Cost/BuildTime", "multiply": 1.5},
+		{ "value": "Cost/Resources/wood", "multiply": 0.5 },
+		{ "value": "Loot/wood", "multiply": 0.5 }
+	],
+	"affects": ["Economic !CivCentre !Naval", "House"]
+}
Index: ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/corral.xml
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/corral.xml
+++ ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/corral.xml
@@ -1,24 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Entity parent="template_structure_resource_corral">
-  <Cost>
-    <BuildTime>60</BuildTime>
-    <Resources>
-      <wood>0</wood>
-    </Resources>
-  </Cost>
   <Footprint>
     <Square width="14.0" depth="22.0"/>
   </Footprint>
-  <Health>
-    <Max>400</Max>
-  </Health>
   <Identity>
     <Civ>ptol</Civ>
     <SpecificName>Epaulos</SpecificName>
   </Identity>
-  <Loot>
-    <wood>0</wood>
-  </Loot>
   <Obstruction>
     <Static width="12.0" depth="20.0"/>
   </Obstruction>
Index: ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/farmstead.xml
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/farmstead.xml
+++ ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/farmstead.xml
@@ -1,24 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Entity parent="template_structure_economic_farmstead">
-  <Cost>
-    <BuildTime>80</BuildTime>
-    <Resources>
-      <wood>0</wood>
-    </Resources>
-  </Cost>
   <Footprint>
     <Square width="20.0" depth="18.0"/>
   </Footprint>
-  <Health>
-    <Max>400</Max>
-  </Health>
   <Identity>
     <Civ>ptol</Civ>
     <SpecificName>Epoikion</SpecificName>
   </Identity>
-  <Loot>
-    <wood>0</wood>
-  </Loot>
   <Obstruction>
     <Static width="18.0" depth="16.0"/>
   </Obstruction>
Index: ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/house.xml
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/house.xml
+++ ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/house.xml
@@ -1,26 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Entity parent="template_structure_civic_house">
-  <Cost>
-    <BuildTime>80</BuildTime>
-    <Resources>
-      <wood>0</wood>
-    </Resources>
-  </Cost>
   <Footprint>
     <Square width="15.0" depth="14.0"/>
   </Footprint>
   <Health>
-    <Max>500</Max>
     <SpawnEntityOnDeath>decay|rubble/rubble_stone_3x3</SpawnEntityOnDeath>
   </Health>
   <Identity>
     <Civ>ptol</Civ>
     <SpecificName>Oikos</SpecificName>
-    <Tooltip>Increase the population limit. Since they are made of mud brick, Egyptian houses are free of cost, but are very weak.</Tooltip>
   </Identity>
-  <Loot>
-    <wood>0</wood>
-  </Loot>
   <Obstruction>
     <Static width="13.0" depth="12.0"/>
   </Obstruction>
Index: ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/storehouse.xml
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/storehouse.xml
+++ ps/trunk/binaries/data/mods/public/simulation/templates/structures/ptol/storehouse.xml
@@ -1,25 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Entity parent="template_structure_economic_storehouse">
-  <Cost>
-    <BuildTime>80</BuildTime>
-    <Resources>
-      <wood>0</wood>
-    </Resources>
-  </Cost>
   <Footprint>
     <Square width="19.0" depth="18.0"/>
   </Footprint>
   <Health>
-    <Max>400</Max>
     <SpawnEntityOnDeath>decay|rubble/rubble_stone_4x4</SpawnEntityOnDeath>
   </Health>
   <Identity>
     <Civ>ptol</Civ>
     <SpecificName>Apothēkē</SpecificName>
   </Identity>
-  <Loot>
-    <wood>0</wood>
-  </Loot>
   <Obstruction>
     <Static width="17.0" depth="16.0"/>
   </Obstruction>
Index: ps/trunk/binaries/data/mods/public/simulation/templates/template_structure_resource_corral.xml
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/templates/template_structure_resource_corral.xml
+++ ps/trunk/binaries/data/mods/public/simulation/templates/template_structure_resource_corral.xml
@@ -18,7 +18,7 @@
     <GenericName>Corral</GenericName>
     <SelectionGroupName>template_structure_resource_corral</SelectionGroupName>
     <Tooltip>Raise Domestic Animals for food.</Tooltip>
-    <VisibleClasses datatype="tokens">Village Corral</VisibleClasses>
+    <VisibleClasses datatype="tokens">Economic Village Corral</VisibleClasses>
     <Icon>structures/corral.png</Icon>
     <RequiredTechnology>phase_village</RequiredTechnology>
   </Identity>