Final answer:
The provided texts do not align with the questions asked about 'The Great Gatsby' or 'Dare's Gift', hence a detailed answer cannot be supplied based on these excerpts.
Step-by-step explanation:
The text provided does not contain sufficient information to accurately answer the questions about George Wilson's beliefs on Myrtle's fate in F. Scott Fitzgerald's 'The Great Gatsby' or Mildred's feelings about the past events in 'Dare's Gift.’ The text also does not provide insight into how Dr. Lakeby explains events scientifically over supernatural, nor if he believes his explanations. Therefore, I am unable to provide a factual and detailed answer based on these texts, as the questions likely pertain to different literature.