Questions and phone orders: 10 AM - 10 PM Pacific (760) 920-6465
We will be out in the field, collecting, March 22-25. Orders will ship Monday March 27

We ship almost everything Priority Mail. It is usually the least expensive option and has the advantage of being fast. We always ship the least expensive way and we do not add a penny for handling. We refund any overpayment on shipping as soon as the box is packed.   

You can save quite a bit on shipping when you order more than one item.  Use the chart below to see what shipping of that box would cost compared with the small flat rate box a single student unit or hand specimen would ship in. Use your zip code to find the shipping zone.

International buyers: click on "Combine Shipping" button in the cart or email us using the contact link on the home page for a quote on shipping.


Current shipping rates January 22, 2023


     First Class package $3.63 through $6.78 depending on weight and zip code. There is a 16 ounce limit on First Class packages.

Priority Mail small flat rate box  $8.10
Priority Mail medium flat rate box  $14.00  
Priority Mail large flat rate box  $18.95

Multiple items - ask for an invoice by clicking on “Combine Shipping” button in the cart.
Unless we can use a small flat rate box, we will use Priority Mail Cubic or Parcel Select Ground Cubic as our first choice for anything over 16 ounces, as these often are the least expensive rates. Priority takes a day coast to coast, Parcel Select takes about four days. 
The new Cubic rates use three factors: weight, box dimensions and zip code and since the ability to assign the correct rate has not been automated, please click the “Combine Shipping” button in the cart if you are purchasing more than one item. You will receive an invoice with the correct shipping. The chart below will give you a close estimate of shipping cost.


For single items, the software will try, but it may overcharge slightly. We will refund any shipping overpayment as soon as the order is packed.    

Note! If you go straight to checkout with multiple items and don’t request an invoice by clicking on “Combine Shipping,” you may not pay the correct shipping. You will receive an invoice for any underpayment. We’ll refund any overpayment as soon as the box is packed.