diff --git a/syndicate/mc/preserve.md b/syndicate/mc/preserve.md
index c8c561d..93b1104 100644
--- a/syndicate/mc/preserve.md
+++ b/syndicate/mc/preserve.md
@@ -903,6 +903,20 @@ or `Record`s.
  - `Set` ↔ `set`
  - `Dictionary` ↔ `dict`
 
+### Squeak Smalltalk
+
+ - `Boolean` ↔ `true` and `false`
+ - `Float` ↔ perhaps a subclass of `Float`?
+ - `Double` ↔ `Float`
+ - `SignedInteger` ↔ `Integer`
+ - `String` ↔ `WideString`
+ - `ByteString` ↔ `ByteArray`
+ - `Symbol` ↔ `WideSymbol`
+ - `Record` ↔ a simple data class
+ - `Sequence` ↔ `ArrayedCollection` (usually `OrderedCollection`)
+ - `Set` ↔ `Set`
+ - `Dictionary` ↔ `Dictionary`
+
 ## Appendix. Why not Just Use JSON?
 
 <!-- JSON lacks semantics: JSON syntax doesn't denote anything -->