diff --git a/parse.cpp b/parse.cpp
index f405bd9f..d5c59eed 100644
--- a/parse.cpp
+++ b/parse.cpp
@@ -140,8 +140,6 @@ parse_eq(char *eqn, struct elt_list **elt_ptr, int association)
 /*
  *   Sort elements in reaction and combine
  */
-	//qsort(elt_list[0], (size_t) count_elts, sizeof(struct elt_list),
-	//	  elt_list_compare);
 	if (elt_list_combine() == ERROR)
 		return (ERROR);
 /*
diff --git a/read.cpp b/read.cpp
index 276fc1ad..05851720 100644
--- a/read.cpp
+++ b/read.cpp
@@ -1665,7 +1665,7 @@ read_inverse(void)
 	{
 		qsort(inverse[n].isotopes,
 			  (size_t) inverse[n].count_isotopes,
-			  (size_t) sizeof(struct inv_isotope), inverse_isotope_compare);
+			  sizeof(struct inv_isotope), inverse_isotope_compare);
 	}
 
 	if (inverse[n].count_i_u > 0)
diff --git a/structures.cpp b/structures.cpp
index 614a4632..8a240017 100644
--- a/structures.cpp
+++ b/structures.cpp
@@ -962,7 +962,7 @@ master_bsearch(const char *ptr)
 		return (NULL);
 	}
 	void_ptr = bsearch((const char *) ptr,
-					   (char *) master[0],
+					   (char *) &master[0],
 					   master.size(),
 					   sizeof(struct master *), master_compare_string);
 	if (void_ptr == NULL)
@@ -1258,7 +1258,7 @@ phase_bsearch(const char *ptr, int *j, int print)
 	{
 		void_ptr = (void *)
 			bsearch((char *) ptr,
-					(char *) phases[0],
+					(char *) &phases[0],
 					phases.size(),
 					sizeof(struct phase *), phase_compare_string);
 	}
diff --git a/tidy.cpp b/tidy.cpp
index 0f2bf574..3d3a140e 100644
--- a/tidy.cpp
+++ b/tidy.cpp
@@ -150,14 +150,14 @@ tidy_model(void)
 /* species */
 	if (new_model == TRUE)
 	{
-		qsort(s[0], s.size(), sizeof(struct species *), s_compare);
+		qsort(&s[0], s.size(), sizeof(struct species *), s_compare);
 
 /* master species */
-		qsort(master[0], master.size(), sizeof(struct master *), master_compare);
+		qsort(&master[0], master.size(), sizeof(struct master *), master_compare);
 /* elements */
-		qsort(elements[0], elements.size(), sizeof(struct element *), element_compare);
+		qsort(&elements[0], elements.size(), sizeof(struct element *), element_compare);
 /* phases */
-		qsort(phases[0], phases.size(), sizeof(struct phase *), phase_compare);
+		qsort(&phases[0], phases.size(), sizeof(struct phase *), phase_compare);
 
 	}