diff --git a/graph/leveldb/iterator.go b/graph/leveldb/iterator.go
index 035224c..28244cc 100644
--- a/graph/leveldb/iterator.go
+++ b/graph/leveldb/iterator.go
@@ -43,7 +43,7 @@ type Iterator struct {
 
 func NewIterator(prefix string, d quad.Direction, value graph.Value, qs *TripleStore) *Iterator {
 	vb := value.(Token)
-	p := make([]byte, 0, 2+qs.hasher_size)
+	p := make([]byte, 0, 2+qs.hasherSize)
 	p = append(p, []byte(prefix)...)
 	p = append(p, []byte(vb[1:])...)
 
@@ -169,9 +169,9 @@ func PositionOf(prefix []byte, d quad.Direction, qs *TripleStore) int {
 		case quad.Subject:
 			return 2
 		case quad.Predicate:
-			return qs.hasher_size + 2
+			return qs.hasherSize + 2
 		case quad.Object:
-			return 2*qs.hasher_size + 2
+			return 2*qs.hasherSize + 2
 		case quad.Label:
 			return -1
 		}
@@ -179,11 +179,11 @@ func PositionOf(prefix []byte, d quad.Direction, qs *TripleStore) int {
 	if bytes.Equal(prefix, []byte("po")) {
 		switch d {
 		case quad.Subject:
-			return 2*qs.hasher_size + 2
+			return 2*qs.hasherSize + 2
 		case quad.Predicate:
 			return 2
 		case quad.Object:
-			return qs.hasher_size + 2
+			return qs.hasherSize + 2
 		case quad.Label:
 			return -1
 		}
@@ -191,9 +191,9 @@ func PositionOf(prefix []byte, d quad.Direction, qs *TripleStore) int {
 	if bytes.Equal(prefix, []byte("os")) {
 		switch d {
 		case quad.Subject:
-			return qs.hasher_size + 2
+			return qs.hasherSize + 2
 		case quad.Predicate:
-			return 2*qs.hasher_size + 2
+			return 2*qs.hasherSize + 2
 		case quad.Object:
 			return 2
 		case quad.Label:
@@ -203,11 +203,11 @@ func PositionOf(prefix []byte, d quad.Direction, qs *TripleStore) int {
 	if bytes.Equal(prefix, []byte("cp")) {
 		switch d {
 		case quad.Subject:
-			return 2*qs.hasher_size + 2
+			return 2*qs.hasherSize + 2
 		case quad.Predicate:
-			return qs.hasher_size + 2
+			return qs.hasherSize + 2
 		case quad.Object:
-			return 3*qs.hasher_size + 2
+			return 3*qs.hasherSize + 2
 		case quad.Label:
 			return 2
 		}
diff --git a/graph/leveldb/triplestore.go b/graph/leveldb/triplestore.go
index 71304df..74626d8 100644
--- a/graph/leveldb/triplestore.go
+++ b/graph/leveldb/triplestore.go
@@ -49,15 +49,15 @@ func (t Token) Key() interface{} {
 }
 
 type TripleStore struct {
-	dbOpts      *opt.Options
-	db          *leveldb.DB
-	path        string
-	open        bool
-	size        int64
-	hasher_size int
-	make_hasher func() hash.Hash
-	writeopts   *opt.WriteOptions
-	readopts    *opt.ReadOptions
+	dbOpts     *opt.Options
+	db         *leveldb.DB
+	path       string
+	open       bool
+	size       int64
+	hasherSize int
+	makeHasher func() hash.Hash
+	writeopts  *opt.WriteOptions
+	readopts   *opt.ReadOptions
 }
 
 func createNewLevelDB(path string, _ graph.Options) error {
@@ -94,8 +94,8 @@ func newTripleStore(path string, options graph.Options) (graph.TripleStore, erro
 		write_buffer_mb = val
 	}
 	qs.dbOpts.WriteBuffer = write_buffer_mb * opt.MiB
-	qs.hasher_size = sha1.Size
-	qs.make_hasher = func() hash.Hash { return sha1.New() }
+	qs.hasherSize = sha1.Size
+	qs.makeHasher = sha1.New
 	qs.writeopts = &opt.WriteOptions{
 		Sync: false,
 	}
@@ -125,8 +125,8 @@ func (qs *TripleStore) Size() int64 {
 }
 
 func (qs *TripleStore) createKeyFor(d [3]quad.Direction, triple quad.Quad) []byte {
-	hasher := qs.make_hasher()
-	key := make([]byte, 0, 2+(qs.hasher_size*3))
+	hasher := qs.makeHasher()
+	key := make([]byte, 0, 2+(qs.hasherSize*3))
 	// TODO(kortschak) Remove dependence on String() method.
 	key = append(key, []byte{d[0].Prefix(), d[1].Prefix()}...)
 	key = append(key, qs.convertStringToByteHash(triple.Get(d[0]), hasher)...)
@@ -136,8 +136,8 @@ func (qs *TripleStore) createKeyFor(d [3]quad.Direction, triple quad.Quad) []byt
 }
 
 func (qs *TripleStore) createProvKeyFor(d [3]quad.Direction, triple quad.Quad) []byte {
-	hasher := qs.make_hasher()
-	key := make([]byte, 0, 2+(qs.hasher_size*4))
+	hasher := qs.makeHasher()
+	key := make([]byte, 0, 2+(qs.hasherSize*4))
 	// TODO(kortschak) Remove dependence on String() method.
 	key = append(key, []byte{quad.Label.Prefix(), d[0].Prefix()}...)
 	key = append(key, qs.convertStringToByteHash(triple.Get(quad.Label), hasher)...)
@@ -148,8 +148,8 @@ func (qs *TripleStore) createProvKeyFor(d [3]quad.Direction, triple quad.Quad) [
 }
 
 func (qs *TripleStore) createValueKeyFor(s string) []byte {
-	hasher := qs.make_hasher()
-	key := make([]byte, 0, 1+qs.hasher_size)
+	hasher := qs.makeHasher()
+	key := make([]byte, 0, 1+qs.hasherSize)
 	key = append(key, []byte("z")...)
 	key = append(key, qs.convertStringToByteHash(s, hasher)...)
 	return key
@@ -338,7 +338,7 @@ func (qs *TripleStore) Quad(k graph.Value) quad.Quad {
 
 func (qs *TripleStore) convertStringToByteHash(s string, hasher hash.Hash) []byte {
 	hasher.Reset()
-	key := make([]byte, 0, qs.hasher_size)
+	key := make([]byte, 0, qs.hasherSize)
 	hasher.Write([]byte(s))
 	key = hasher.Sum(key)
 	return key
@@ -446,7 +446,7 @@ func (qs *TripleStore) TripleDirection(val graph.Value, d quad.Direction) graph.
 	v := val.(Token)
 	offset := PositionOf(v[0:2], d, qs)
 	if offset != -1 {
-		return Token(append([]byte("z"), v[offset:offset+qs.hasher_size]...))
+		return Token(append([]byte("z"), v[offset:offset+qs.hasherSize]...))
 	} else {
 		return Token(qs.Quad(val).Get(d))
 	}
diff --git a/graph/mongo/iterator.go b/graph/mongo/iterator.go
index 0c54910..03a8560 100644
--- a/graph/mongo/iterator.go
+++ b/graph/mongo/iterator.go
@@ -185,13 +185,13 @@ func (it *Iterator) Contains(v graph.Value) bool {
 	case quad.Subject:
 		offset = 0
 	case quad.Predicate:
-		offset = (it.qs.hasher_size * 2)
+		offset = (it.qs.hasherSize * 2)
 	case quad.Object:
-		offset = (it.qs.hasher_size * 2) * 2
+		offset = (it.qs.hasherSize * 2) * 2
 	case quad.Label:
-		offset = (it.qs.hasher_size * 2) * 3
+		offset = (it.qs.hasherSize * 2) * 3
 	}
-	val := v.(string)[offset : it.qs.hasher_size*2+offset]
+	val := v.(string)[offset : it.qs.hasherSize*2+offset]
 	if val == it.hash {
 		it.result = v
 		return graph.ContainsLogOut(it, v, true)
diff --git a/graph/mongo/triplestore.go b/graph/mongo/triplestore.go
index 9df314d..6c2a334 100644
--- a/graph/mongo/triplestore.go
+++ b/graph/mongo/triplestore.go
@@ -39,11 +39,11 @@ var _ graph.BulkLoader = (*TripleStore)(nil)
 const DefaultDBName = "cayley"
 
 type TripleStore struct {
-	session     *mgo.Session
-	db          *mgo.Database
-	hasher_size int
-	make_hasher func() hash.Hash
-	idCache     *IDLru
+	session    *mgo.Session
+	db         *mgo.Database
+	hasherSize int
+	makeHasher func() hash.Hash
+	idCache    *IDLru
 }
 
 func createNewMongoGraph(addr string, options graph.Options) error {
@@ -87,14 +87,14 @@ func newTripleStore(addr string, options graph.Options) (graph.TripleStore, erro
 	}
 	qs.db = conn.DB(dbName)
 	qs.session = conn
-	qs.hasher_size = sha1.Size
-	qs.make_hasher = func() hash.Hash { return sha1.New() }
+	qs.hasherSize = sha1.Size
+	qs.makeHasher = sha1.New
 	qs.idCache = NewIDLru(1 << 16)
 	return &qs, nil
 }
 
 func (qs *TripleStore) getIdForTriple(t quad.Quad) string {
-	hasher := qs.make_hasher()
+	hasher := qs.makeHasher()
 	id := qs.convertStringToByteHash(t.Subject, hasher)
 	id += qs.convertStringToByteHash(t.Predicate, hasher)
 	id += qs.convertStringToByteHash(t.Object, hasher)
@@ -104,7 +104,7 @@ func (qs *TripleStore) getIdForTriple(t quad.Quad) string {
 
 func (qs *TripleStore) convertStringToByteHash(s string, hasher hash.Hash) string {
 	hasher.Reset()
-	key := make([]byte, 0, qs.hasher_size)
+	key := make([]byte, 0, qs.hasherSize)
 	hasher.Write([]byte(s))
 	key = hasher.Sum(key)
 	return hex.EncodeToString(key)
@@ -246,7 +246,7 @@ func (qs *TripleStore) TriplesAllIterator() graph.Iterator {
 }
 
 func (qs *TripleStore) ValueOf(s string) graph.Value {
-	h := qs.make_hasher()
+	h := qs.makeHasher()
 	return qs.convertStringToByteHash(s, h)
 }
 
@@ -292,13 +292,13 @@ func (qs *TripleStore) TripleDirection(in graph.Value, d quad.Direction) graph.V
 	case quad.Subject:
 		offset = 0
 	case quad.Predicate:
-		offset = (qs.hasher_size * 2)
+		offset = (qs.hasherSize * 2)
 	case quad.Object:
-		offset = (qs.hasher_size * 2) * 2
+		offset = (qs.hasherSize * 2) * 2
 	case quad.Label:
-		offset = (qs.hasher_size * 2) * 3
+		offset = (qs.hasherSize * 2) * 3
 	}
-	val := in.(string)[offset : qs.hasher_size*2+offset]
+	val := in.(string)[offset : qs.hasherSize*2+offset]
 	return val
 }