## Facts

- In April 1905, the plaintiff, a fare-paying passenger on the defendant’s streetcar, suffered physical injury due to the defendant’s negligence.
- The plaintiff claimed the accident caused severe nervous shock and a continuing extreme nervous condition.
- About a year after the accident, the plaintiff became pregnant.
- On July 5, 1906, she delivered prematurely; the infant died within roughly 48 hours.
- The plaintiff offered medical testimony attempting to connect the accident to the nervous condition and the nervous condition to the premature birth and infant death; her physician could only “surmise” the cause of the infant’s weakness.
- The defendant’s physician testified that a premature birth might result from a severe nervous condition if the mother were profoundly affected.
- The trial judge instructed that the jury could not award damages for the child’s death itself, but permitted damages for the mother’s mental suffering from contemplating the child’s death.
- The jury returned a verdict for the plaintiff; the defendant took exceptions to the causation rulings and the damages instruction.

## Issues

1. Whether the evidence permitted a jury finding that the defendant’s negligence caused the plaintiff’s nervous condition and that the nervous condition caused the later premature birth.
2. Whether the plaintiff could recover damages for mental suffering arising from contemplation of the death of a child conceived months after, and born more than a year after, the accident.

## Decision

- The court sustained the defendant’s exceptions.
- The evidence was sufficient to allow the jury to consider whether the accident-induced nervous condition caused the premature birth.
- The trial court erred by permitting the jury to include, as damages, the mother’s mental suffering based on contemplating the death of an after-conceived child.
- The case was remanded for further proceedings consistent with the ruling excluding that element of damages.

## Legal Principles

- Causation must be proved by a fair preponderance of the evidence and cannot rest on conjecture, surmise, or speculation.
- A negligent act may be treated as a proximate cause when the proof supports a continuous causal chain, rather than merely showing it created a passive condition for an independent cause.
- Mental suffering associated with and growing out of a physical injury is a permissible component of compensatory damages.
- Compensatory damages are limited to actual loss caused by the wrong; courts will not extend recovery to remote mental anguish not recognized as legally compensable.
- The plaintiff’s post-accident conception of a child was not treated as an intervening cause automatically breaking causation, but remoteness limits still restrict the recoverable scope of damages.

## Conclusion

The court held that the jury could consider whether the accident caused a severe nervous condition leading to premature birth, but it rejected recovery for the mother’s grief tied to the death of a child conceived long after the accident, treating that mental suffering as an impermissibly remote element of damages.


Sullivan v. Old Colony St. Ry. Co., 197 Mass. 512, 83 N.E. 1091 (Mass. 1908)