On January 1, 2011, Trillini Corporation issued $3,000,000 of 10-year, 8% convertible debentures at 102. Interest is to be paid semiannually on June 30 and December 31. Each $1,000 debenture can be converted into eight shares of Trillini Corporation $100 par value common stock after December 31, 2012.

   On January 1, 2013, $600,000 of debentures are converted into common stock, which is then selling at $110. An additional $600,000 of debentures are converted on March 31, 2013. The market price of the common stock is then $115. Accrued interest at March 31 will be paid on the next interest date.
    Bond premium is amortized on a straight-line basis.

Instructions
Make the necessary journal entries for:
    (a) December 31, 2012.     (c) March 31, 2013.
    (b) January 1, 2013.           (d) June 30, 2013.
Record the conversions using the book value method.