diff --git a/MFRC522.h b/MFRC522.h
index d2c00da..1f1c9a7 100644
--- a/MFRC522.h
+++ b/MFRC522.h
@@ -58,13 +58,13 @@
  * MIFARE Ultralight (MF0ICU1):
  * 		Has 16 pages of 4 bytes = 64 bytes.
  * 		Pages 0 + 1 is used for the 7-byte UID.
- * 		Page 2 contains the last chech digit for the UID, one byte manufacturer internal data, and the lock bytes (see http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf section 8.5.2)
+ * 		Page 2 contains the last check digit for the UID, one byte manufacturer internal data, and the lock bytes (see http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf section 8.5.2)
  * 		Page 3 is OTP, One Time Programmable bits. Once set to 1 they cannot revert to 0.
  * 		Pages 4-15 are read/write unless blocked by the lock bytes in page 2. 
  * MIFARE Ultralight C (MF0ICU2):
- * 		Has 48 pages of 4 bytes = 64 bytes.
+ * 		Has 48 pages of 4 bytes = 192 bytes.
  * 		Pages 0 + 1 is used for the 7-byte UID.
- * 		Page 2 contains the last chech digit for the UID, one byte manufacturer internal data, and the lock bytes (see http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf section 8.5.2)
+ * 		Page 2 contains the last check digit for the UID, one byte manufacturer internal data, and the lock bytes (see http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf section 8.5.2)
  * 		Page 3 is OTP, One Time Programmable bits. Once set to 1 they cannot revert to 0.
  * 		Pages 4-39 are read/write unless blocked by the lock bytes in page 2. 
  * 		Page 40 Lock bytes