On January 1, 2014, Gottlieb Corporation issued $4,110,000 of 10-year, 10% convertible debentures at 102. Interest is to be paid semiannually on June 30 and December 31. Each $1,000 debenture can be converted into 9 shares of Gottlieb Corporation $101 par value common stock after December 31, 2015.

On January 1, 2016, $411,000 of debentures are converted into common stock, which is then selling at $111. An additional $411,000 of debentures are converted on March 31, 2016. The market price of the common stock is then $114. Accrued interest at March 31 will be paid on the next interest date.

Bond premium is amortized on a straight-line basis.

Make the necessary journal entries for:

(a) December 31, 2015. (c) March 31, 2016.

(b) January 1, 2016. (d) June 30, 2016.