Calvin’s rowing erg
Lessons in ChemistryCalvin’s rowing erg is a machine built by Calvin Evans that becomes part of Elizabeth Zott’s daily life during pregnancy. It is at once practical exercise equipment and a tangible reminder of the man who made it: Elizabeth keeps using it after his death, and its demanding routine surfaces in conversations about her health, grief, and preparation for motherhood.
Construction and Use
Elizabeth explains that Calvin built the erg. The evidence offers no description of its materials or design; its importance comes instead from its maker and from the work Elizabeth puts into it. She rows on it while pregnant, and when asked how far she goes, answers that she covers ten thousand meters. The scale of that daily distance makes the erg more than an occasional aid to exercise: it is part of a rigorous routine.
Elizabeth tells Dr. Mason that she has continued using the machine because the exertion can leave her tired enough to sleep. She also begins to explain that she had thought it might do something else, but the conversation does not establish what that intended benefit was. The unfinished explanation matters: her reason for continuing is partly clear, while another part remains unspoken in the scene. The machine’s role should not be reduced to a purpose the text leaves unspecified.
Pregnancy and Medical Attention
Dr. Mason is surprised that Elizabeth exercises on purpose, especially while pregnant. He then reframes the activity as possible preparation for childbirth, comparing the experience of exertion with the pain and suffering involved. His response shifts the erg from a source of exercise to a subject of medical discussion, though it remains his interpretation rather than a confirmed medical finding.
He also suggests that using the machine may have made Elizabeth stronger and benefited the baby through better circulation. He speculates that the repeated movement could have a calming effect on the baby. These are Dr. Mason’s explanations, not conclusions independently established by the narrative. Elizabeth’s own account is more personal and immediate: the effort sometimes helps her sleep, while the machine is also connected to Calvin, who built it.
The erg figures in another medical encounter when a head nurse objects that Elizabeth’s need to use it is against protocol and says Dr. Mason will object. Elizabeth insists that he will approve and asks the nurse to tell him that she needs to erg. The exchange shows her asserting a specific need despite institutional resistance; it does not explain the protocol or the circumstances behind it. Her insistence makes the machine consequential within the scene, rather than merely a piece of equipment in the background.
The Machine at Home and in the Laboratory
When Dr. Mason later asks whether Elizabeth is still exercising, he specifically asks about erging and goes into the next room to look for the machine. His exclamation that Evans must have been a sadist conveys his reaction to the erg’s demanding character. Elizabeth calls him back to the laboratory, noting that she has a meeting in thirty minutes and work to do. The moment places the machine within the same domestic workspace as her scientific activity, while also showing that its intensity is legible to someone who sees it.
The erg’s recurrence gives it a practical continuity across different parts of Elizabeth’s life. It is discussed in medical visits, invoked in a dispute with a nurse, and present in the next room when Dr. Mason checks on her exercise. Yet the account does not describe it as a medical prescription or state that Elizabeth’s routine ends. What it establishes is a repeated, strenuous practice that Elizabeth maintains while pregnant and amid the demands of her work.
Calvin’s Presence and Elizabeth’s Grief
The erg’s maker gives these scenes an emotional dimension without changing its ordinary function. Calvin is dead, but something he built remains in use by Elizabeth. The narrative places that fact alongside her growing awareness of what his absence means: she has moved from mourning her partner to mourning the father she believes he would have been to their child. The machine cannot stand in for Calvin or supply the future they have lost, but its continued use keeps his handiwork materially present in Elizabeth’s life.
That contrast sharpens the object’s significance. Elizabeth is not presented as exercising to reenact a shared past; she explains that exhaustion can help her sleep, and the narrative leaves another possible reason unfinished. At the same time, the erg bears Calvin’s unmistakable connection because he built it. It therefore joins the practical demands of pregnancy and Elizabeth’s efforts to manage daily life with the fact of Calvin’s absence. Its importance lies in that overlap: a machine made by the dead remains active in the routines of the living.