diff --git a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BibleViewerModules.java b/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BibleViewerModules.java
index 62190dd..76eb24c 100644
--- a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BibleViewerModules.java
+++ b/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BibleViewerModules.java
@@ -3,9 +3,9 @@ package org.bspeice.minimalbible.activity.viewer;
 import android.util.Log;
 
 import org.bspeice.minimalbible.activity.navigation.ExpListNavAdapter;
-import org.bspeice.minimalbible.activity.viewer.bookutil.VersificationUtil;
 import org.bspeice.minimalbible.service.book.VerseLookupModules;
 import org.crosswire.jsword.book.Book;
+import org.crosswire.jsword.versification.VersificationUtil;
 
 import java.util.NoSuchElementException;
 import java.util.concurrent.atomic.AtomicReference;
diff --git a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BookFragment.java b/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BookFragment.java
index 2f4908b..6b18680 100644
--- a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BookFragment.java
+++ b/app/src/main/java/org/bspeice/minimalbible/activity/viewer/BookFragment.java
@@ -14,13 +14,11 @@ import android.webkit.WebViewClient;
 import org.bspeice.minimalbible.Injector;
 import org.bspeice.minimalbible.R;
 import org.bspeice.minimalbible.activity.BaseFragment;
-import org.bspeice.minimalbible.activity.viewer.bookutil.VersificationUtil;
 import org.bspeice.minimalbible.service.book.VerseLookupService;
 import org.crosswire.jsword.book.Book;
 import org.crosswire.jsword.passage.Verse;
 import org.crosswire.jsword.versification.BibleBook;
-
-import java.util.List;
+import org.crosswire.jsword.versification.VersificationUtil;
 
 import javax.inject.Inject;
 import javax.inject.Named;
@@ -29,8 +27,6 @@ import butterknife.ButterKnife;
 import butterknife.InjectView;
 import dagger.Lazy;
 
-import static org.bspeice.minimalbible.util.StringUtil.joinString;
-
 /**
  * A placeholder fragment containing a simple view.
  */
@@ -160,9 +156,4 @@ public class BookFragment extends BaseFragment {
     private void invokeJavascript(String function, Object arg) {
         mainContent.loadUrl("javascript:" + function + "('" + arg.toString() + "')");
     }
-
-    @SuppressWarnings("unused")
-    private void invokeJavascript(String function, List<Object> args) {
-        mainContent.loadUrl("javascript:" + function + "(" + joinString(",", args.toArray()) + ")");
-    }
 }
diff --git a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/ExpListNavDrawerFragment.java b/app/src/main/java/org/bspeice/minimalbible/activity/viewer/ExpListNavDrawerFragment.java
index 272e963..c8e8e8e 100644
--- a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/ExpListNavDrawerFragment.java
+++ b/app/src/main/java/org/bspeice/minimalbible/activity/viewer/ExpListNavDrawerFragment.java
@@ -10,9 +10,9 @@ import org.bspeice.minimalbible.Injector;
 import org.bspeice.minimalbible.R;
 import org.bspeice.minimalbible.activity.navigation.ExpListNavAdapter;
 import org.bspeice.minimalbible.activity.navigation.NavDrawerFragment;
-import org.bspeice.minimalbible.activity.viewer.bookutil.VersificationUtil;
 import org.crosswire.jsword.book.Book;
 import org.crosswire.jsword.versification.BibleBook;
+import org.crosswire.jsword.versification.VersificationUtil;
 
 import java.util.ArrayList;
 import java.util.HashMap;
diff --git a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/bookutil/VersificationUtil.java b/app/src/main/java/org/bspeice/minimalbible/activity/viewer/bookutil/VersificationUtil.java
deleted file mode 100644
index ae2787e..0000000
--- a/app/src/main/java/org/bspeice/minimalbible/activity/viewer/bookutil/VersificationUtil.java
+++ /dev/null
@@ -1,62 +0,0 @@
-package org.bspeice.minimalbible.activity.viewer.bookutil;
-
-import org.bspeice.minimalbible.util.IteratorUtil;
-import org.crosswire.jsword.book.Book;
-import org.crosswire.jsword.book.BookMetaData;
-import org.crosswire.jsword.versification.BibleBook;
-import org.crosswire.jsword.versification.Versification;
-import org.crosswire.jsword.versification.system.Versifications;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import rx.Observable;
-import rx.functions.Func1;
-
-/**
- * Created by bspeice on 7/11/14.
- */
-public class VersificationUtil {
-
-    private static final List<BibleBook> INTROS = new ArrayList<BibleBook>() {{
-        add(BibleBook.INTRO_BIBLE);
-        add(BibleBook.INTRO_OT);
-        add(BibleBook.INTRO_NT);
-    }};
-
-    // TODO: Cache the versification?
-    public Versification getVersification(Book b) {
-        return Versifications.instance().getVersification(
-                (String) b.getBookMetaData().getProperty(BookMetaData.KEY_VERSIFICATION)
-        );
-    }
-
-    public Observable<BibleBook> getBooks(Book b) {
-        Versification v = getVersification(b);
-        return Observable.from(IteratorUtil.copyIterator(v.getBookIterator()))
-                .filter(new Func1<BibleBook, Boolean>() {
-                    @Override
-                    public Boolean call(BibleBook bibleBook) {
-                        return !INTROS.contains(bibleBook);
-                    }
-                });
-    }
-
-    public Observable<String> getBookNames(final Book b) {
-        return getBooks(b)
-                .map(new Func1<BibleBook, String>() {
-                    @Override
-                    public String call(BibleBook bibleBook) {
-                        return getBookName(b, bibleBook);
-                    }
-                });
-    }
-
-    public Integer getChapterCount(Book b, BibleBook bibleBook) {
-        return getVersification(b).getLastChapter(bibleBook);
-    }
-
-    public String getBookName(Book book, BibleBook bibleBook) {
-        return getVersification(book).getLongName(bibleBook);
-    }
-}
diff --git a/app/src/main/java/org/bspeice/minimalbible/util/IteratorUtil.java b/app/src/main/java/org/bspeice/minimalbible/util/IteratorUtil.java
deleted file mode 100644
index f8603f5..0000000
--- a/app/src/main/java/org/bspeice/minimalbible/util/IteratorUtil.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package org.bspeice.minimalbible.util;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * Created by bspeice on 7/11/14.
- */
-public class IteratorUtil {
-    public static <T> List<T> copyIterator(Iterator<T> iter) {
-        List<T> copy = new ArrayList<T>();
-        while (iter.hasNext())
-            copy.add(iter.next());
-        return copy;
-    }
-}
diff --git a/app/src/main/java/org/bspeice/minimalbible/util/StringUtil.java b/app/src/main/java/org/bspeice/minimalbible/util/StringUtil.java
deleted file mode 100644
index c969b2c..0000000
--- a/app/src/main/java/org/bspeice/minimalbible/util/StringUtil.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package org.bspeice.minimalbible.util;
-
-/**
- * Created by bspeice on 8/3/14.
- */
-public class StringUtil {
-
-    // Convenience from http://stackoverflow.com/a/17795110/1454178
-    public static String joinString(String join, Object... strings) {
-        if (strings == null || strings.length == 0) {
-            return "";
-        } else if (strings.length == 1) {
-            return strings[0].toString();
-        } else {
-            StringBuilder sb = new StringBuilder();
-            sb.append(strings[0]);
-            for (int i = 1; i < strings.length; i++) {
-                sb.append(join).append(strings[i].toString());
-            }
-            return sb.toString();
-        }
-    }
-}
diff --git a/app/src/main/kotlin/org/crosswire/jsword/versification/VersificationUtil.kt b/app/src/main/kotlin/org/crosswire/jsword/versification/VersificationUtil.kt
new file mode 100644
index 0000000..6964b56
--- /dev/null
+++ b/app/src/main/kotlin/org/crosswire/jsword/versification/VersificationUtil.kt
@@ -0,0 +1,70 @@
+package org.crosswire.jsword.versification
+
+import org.crosswire.jsword.book.Book
+import java.util.ArrayList
+import org.crosswire.jsword.versification.system.Versifications
+import org.crosswire.jsword.book.BookMetaData
+import rx.Observable
+
+/**
+ * Created by bspeice on 9/10/14.
+ */
+
+class VersificationUtil() {
+    class object {
+        val INTROS = array(
+                BibleBook.INTRO_BIBLE,
+                BibleBook.INTRO_OT,
+                BibleBook.INTRO_NT
+        )
+    }
+
+    fun getBookNames(b: Book): Observable<String> {
+        return Observable.from(b.getVersification().getBookNames(b)) as Observable
+    }
+
+    fun getBooks(b: Book): Observable<BibleBook> {
+        return Observable.from(b.getVersification().getBooks(b)) as Observable
+    }
+
+    fun getChapterCount(b: Book, bibleBook: BibleBook): Int {
+        return b.getVersification().getChapterCount(bibleBook)
+    }
+
+    fun getBookName(b: Book, bibleBook: BibleBook): String {
+        return b.getVersification().getLongName(bibleBook) as String
+    }
+
+    fun getVersification(b: Book): Versification {
+        return b.getVersification()
+    }
+}
+
+// There's probably a better way to do this
+fun <T> Iterator<T>.iterable(): Iterable<T> {
+    val list: MutableList<T> = ArrayList()
+    while (this.hasNext()) {
+        list.add(this.next())
+    }
+
+    return list
+}
+
+fun Versification.getBooks(b: Book): List<BibleBook> {
+    return this.getBookIterator()!!.iterable()
+            .filter { VersificationUtil.INTROS.contains(it) }
+}
+
+fun Versification.getBookNames(b: Book): List<String> {
+    return this.getBooks(b).map { this.getLongName(it) as String }
+}
+
+fun Versification.getChapterCount(b: BibleBook): Int {
+    return this.getLastChapter(b)
+}
+
+fun Book.getVersification(): Versification {
+    return Versifications.instance()!!.getVersification(
+            this.getBookMetaData()!!.getProperty(BookMetaData.KEY_VERSIFICATION) as String
+    ) as Versification
+}
\ No newline at end of file