In what's shaping up to be another heavy week of corporate earnings, "Mad Money" host Jim Cramer plans to monitor four reports in particular on Tuesday.

To start, Cramer will take note of Biogen Idec’s earnings conference call, which is scheduled for 8 a.m. ET. The Weston, Mass.-based company makes therapies for the treatment of neurodegenerative diseases, hemophilia and autoimmune disorders. To Cramer, Biogen Idec is “one of the best biotechs around.” Needless to say, he is optimistic about its quarterly results.

(RELATED: Cramer's Top Dividend Stocks )

Engine maker Cummins will host its earnings conference call at 10 a.m. ET. To Cramer, the trucking industry is in a “powerful, long-term bull market.” Rivals Navistar International and Caterpillar , however, have only offered bearish inputs. So Cummins might not be a good buy ahead of the quarter, Cramer said reluctantly. He recommends taking profits going into Cummins’ results.

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