Conditions of Sale

We do not charge for shipping and insurance to anywhere in the contiguous United States. For buyers outside the 48 states, we will provide packing and delivery to the post office or shipper but you must pay the actual shipping charges. New York residents must pay applicable sales taxes.

Items may be reserved by e-mail or telephone, and will be held for a reasonable time pending receipt of payment. All items are offered with a 10-day money-back guarantee for any reason, but you pay return postage and insurance. We will do everything possible to expedite your shipment, and can work within the framework of institutional requirements. The prices listed are net; payments by check, bank transfer, or credit card (Visa, Mastercard, American Express) are all welcome.

David Coffeen, Ph.D.
Yola Coffeen, Ph.D.

Box 151
New York 10706 USA

telephone: 1-914-478-2594