diff --git a/lib/slot_language/README.md b/lib/slot_language/README.md
index 966806e6..9116ea1a 100644
--- a/lib/slot_language/README.md
+++ b/lib/slot_language/README.md
@@ -6,8 +6,8 @@ In essence the slot_language lets us code the slot_machine.
 
 ## Problem
 
-The Problem with the current way is that some of the slot_machine instruction are
-really quite complex. They are really more function than instructions.
+The Problem with the current way is that some of the slot_machine instructions are
+really quite complex. They are really more functions than instructions.
 
 This is especially true for everything around the dynamic call. Dynamic call itself
 is still ok, but resolve_method is too much. And it even uses method_missing, another
@@ -41,10 +41,10 @@ the message.
 
 ## Syntax (projection)
 
-Since we are not defining methods, there is no seperate scope. We create objects that
+Since we are not defining methods, there is no separate scope. We create objects that
 will transform to SlotMachine Instructions _in_ the scope of the current method.
 In other words they will have access to the compiler and the callable, when transforming
-to SlotMachine (similar to Sol in that way). This means at compile time we have
+to SlotMachine (similar to Sol in that way). This means at compile time we
 can use the frame type and constants, while we can always assume the Message (and not
 much else) at runtime.
 
diff --git a/lib/slot_machine/slot_collection.rb b/lib/slot_machine/slot_collection.rb
index 3f265292..2b2e8fe4 100644
--- a/lib/slot_machine/slot_collection.rb
+++ b/lib/slot_machine/slot_collection.rb
@@ -1,10 +1,10 @@
 module SlotMachine
-  # The Compiler/Collection for the SlotMachine level is a collection of SlotMachine level Method
-  # compilers These will transform to Risc MethodCompilers on the way down.
+  # The Compiler/Collection for the SlotMachine level is a collection of SlotMachine level
+  # Method compilers These will transform to Risc MethodCompilers on the way down.
   #
   # As RubyCompiler pools source at the sol level, when several classes are compiled
-  # from sol to slot, several SlotMachineCompilers get instantiated. They must be merged before
-  # proceeding with translate. Thus we have a append method.
+  # from sol to slot, several SlotMachineCompilers get instantiated. They must be merged
+  # before proceeding with translate. Thus we have a append method.
   #
   class SlotCollection
     attr_reader :method_compilers
diff --git a/lib/sol/lambda_expression.rb b/lib/sol/lambda_expression.rb
index 3ebf38f9..8747d99d 100644
--- a/lib/sol/lambda_expression.rb
+++ b/lib/sol/lambda_expression.rb
@@ -18,7 +18,7 @@ module Sol
       return SlotMachine::SlotDefinition.new(SlotMachine::LambdaConstant.new(parfait_block(compiler)) , [])
     end
 
-    # create a block, a compiler for it, comile the bock and add the compiler(code)
+    # create a block, a compiler for it, compile the block and add the compiler(code)
     # to the method compiler for further processing
     def compile( compiler )
       parfait_block = self.parfait_block(compiler)
@@ -26,7 +26,6 @@ module Sol
       head = body.to_slot( block_compiler )
       block_compiler.add_code(head)
       compiler.add_method_compiler(block_compiler)
-      nil
     end
 
     def each(&block)
diff --git a/test/slot_language/test_slot_compiler2.rb b/test/slot_language/test_slot_compiler2.rb
deleted file mode 100644
index 9c5d7242..00000000
--- a/test/slot_language/test_slot_compiler2.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-require_relative "helper"
-
-module SlotLanguage
-  class TestSlotCompiler < MiniTest::Test
-    include SlotHelper
-
-  end
-end