ÜBER DIE ERHALTUNG DER KRAFT, EINE PHYSIKALISCHE ABHANDLUNG, VORGETRAGEN IN DER SITZUNG DER PHYSIKALISCHEN GESELLSCHAFT ZU BERLIN AM 23STEN JULI 1847

All items are offered subject to prior sale. We accept payment with Visa, MasterCard, Discover, American Express, wire transfers in US$, personal or business checks if in US$ drawn on a US bank, and PayPal to orders@oakknoll.com. Invoices and shipments are processed and shipped within 5 business days (excluding weekends and holidays.) Orders in the USA are normally shipped using the US Post office. Other services such as UPS and air mail through the US Post Office are available upon request. Foreign shipments are sent via USPS International Mail (either USPS First Class International Mail or USPS Priority International Mail, depending on package weight). In the US, please expect a charge of US $8.50 for first volume and $1.00 for each additional volume. If ordering outside the US, postage is calculated based on the weight and destination of your order. Please note: we may contact you to request additional payment for a higher shipping cost, should your order be heavier than expected.