diff --git a/cellindex.js b/cellindex.js
index 5dff132..b963a6b 100644
--- a/cellindex.js
+++ b/cellindex.js
@@ -140,6 +140,21 @@ export const CELL600_METAMAP = {
     306: 103,
     207: 99,
     573: 15,
+
+    565: 25,
+    513: 29,
+    285: 77,
+    324: 61,
+    231: 57,
+    487: 73,
+    413: 59,
+    425: 63,
+    378: 79,
+    388: 27,
+    543: 75,
+    289: 31,
+
+    
 };
 
 export const CELL120_CELL5 = {
diff --git a/label_inscribed_600cell.js b/label_inscribed_600cell.js
index d2b3910..2304239 100644
--- a/label_inscribed_600cell.js
+++ b/label_inscribed_600cell.js
@@ -136,8 +136,6 @@ export function face_vertices(shape, f1, f2, f3) {
 
 
 export function shared_neighbours(shape, nodes) {
-    // for f1/f2/f3 forming a triangular face, return the two vertices of the
-    // adjacent tetrahedra
 
     let ns = shape.nodes.map((n) => n.id);
     for( const n of nodes ) {
@@ -186,6 +184,25 @@ export const ARCTIC_FACES = ARCTIC_I_FACES.map((f) => {
     return f.map((nid) => CELLINDEX.CELL600_METAMAP[nid]);
 });
 
+export const TEMPERATE_PENTAGONS_I = [
+    [ 499, 179, 471, 367, 131 ],
+    [ 131, 367, 165, 313, 449 ],
+    [ 131, 449, 185, 258, 499 ],
+    [ 499, 258, 140, 274, 179 ],
+    [ 179, 274, 527, 95, 471 ],
+    [ 471, 95, 347, 165, 367 ],
+    [ 347, 573, 105, 313, 165 ],
+    [ 313, 105, 585, 185, 449 ],
+    [ 185, 585, 306, 140, 258 ],
+    [ 140, 306, 207, 527, 274 ],
+    [ 527, 207, 573, 347, 95 ],
+    [ 105, 573, 207, 306, 585 ],
+]
+
+export const TEMPERATE_PENTAGONS = TEMPERATE_PENTAGONS_I.map((f) => {
+    return f.map((nid) => CELLINDEX.CELL600_METAMAP[nid])
+});
+
 
 export function layer_two(cell600, centre, faces) {
 
@@ -194,7 +211,16 @@ export function layer_two(cell600, centre, faces) {
         console.log(face, n2);
     }
 }
- 
+
+
+export function layer_three(shape, pentagons) {
+    for ( const pentagon of pentagons ) {
+        console.log(pentagon);
+        const s = shared_neighbours(shape, pentagon);
+        console.log(s);
+        console.log("\n");
+    }
+}
 
 
 /*const cell600 = make_one_600cell();