An assembly of Leyden jars to form an electric battery. From the 1773 French edition of Benjamin Franklin's

How to Join

Membership in HOPOS is open to anyone. Enrollment is for a period of two years and includes a subscription to the HOPOS journal for the same period.

Current membership rates are:

$195 standard membership fee (including electronic access and paper copies of the journal)

$160 standard membership fee (electronic access only)

$110 student membership fee (including electronic access and paper copies of the journal)

$75 student membership fee (electronic access only).

Membership is managed by The University of Chicago Press. Click here to join.

The HOPOS Sponsor-a-Scholar Program

The HOPOS Steering Committee invites scholars working in countries that are not party to the Convention on the Organization for the Economic Co-operation and Development (OECD) to apply for a complimentary membership in HOPOS. (If you are unsure whether you qualify, please email the HOPOS Executive Secretary and supply your name, the country in which you work, and the academic or professional institution (if any) with which you are affiliated.)

Approved scholars will receive a free two-year membership in HOPOS that would grant them electronic access to the HOPOS Journal for the duration of the membership. These memberships can be renewed twice (for a maximum of six years of complimentary electronic membership).

To apply, or to submit a request for renewal, please email the HOPOS Executive Secretary: [1] Your current CV, and [2] An explanation (of no more than 1,000 words) of the professional benefits that you would gain from a membership in HOPOS.

Applications and requests for renewal will be reviewed on a rolling case-by-case basis by the HOPOS Finance Committee. They will aim to communicate a decision to applicants within 8 weeks of receiving a complete application.

Am I Already a Member?

Membership in HOPOS is biennial in its cycle, requiring payment of dues every other year. Membership expires at the end of the calendar year following the payment of dues (e.g., all memberships initiated in 2012 provide benefits through the end of 2013).

To find out whether you are already a member, go to Under “Manage my account”, click the “Log In” link in and sign in using your username and password. Email regarding your membership should arrive from “”. If you cannot find the relevant email and cannot log in, contact the customer service department at or by telephone at (877) 705-1878 (toll-free, U.S. and Canada) or (773) 753-3347 (International). Customer service is available Monday through Friday, 8:00AM to 5:00PM U.S. Central Time.

You may also contact the society, at with questions about membership.

Soal scales from Robert Hooke's Micrographia (1665). In the public domain.