Simply locate each product you wish to order and add each to your cart by clicking "Click here to order..." at the bottom of the product details pages. Once you’ve added all of items to your cart, double-check to make sure everything is there, complete your order by entering the billing and shipping information, and then submit it. If you are purchasing for an institution or if you feel this process would take too long due to the number of items you are ordering, please contact our Institutional Sales department by clicking the Institutions tab at the top of this screen or by clicking here.