Find the general admission cost for an adult at the Glenn H. Curtiss Museum. Additionally, identify and list all the benefits of becoming a general member of the museum, as presented on their 'Join' page. Do not attempt to find specific membership tiers like 'Hellrider Membership' if they are not explicitly detailed.
Navigate to the Glenn H. Curtiss Museum website. Locate and click on the 'Admission' link to find general admission prices. Identify the general admission cost for an adult. Navigate to the 'Join' or 'Membership' page. Identify and list all the general benefits of becoming a member as presented on this page.
State the general admission cost for an adult is $13.50. List all the general benefits of membership: Unlimited free admission to Curtiss Museum, Invitations to Members-only exhibition previews and other special events, Free subscription to Curtiss Museum’s newsletter, Aerogram, Discount on all purchases in the Curtiss Museum Shop, Members discount for special programs and events, and Volunteer Opportunities. Do not attempt to find information about a 'Hellrider Membership' if it is not explicitly detailed on the website.