PLEA FOR SANITY. “We all believe that scientists with unpopular ideas need not suffer repression. We suspect that many marine zoologists have noted similar phenomena as those unified by Williamson’s theory.” And it is all amenable to experimental validation.” (Foreword).
https://books.google.es/books?hl=en&lr=&id=4Bv_CAAAQBAJ&oi=fnd&pg=PR3&dq=evolution+of+larval+stage&ots=Ajv40BxpV8&sig=UoAuSNQhyUJxvYurqij18mPF3GM