Bob Holmström, Editor, 2934 NW 53rd Drive, Portland, OR 97210 Phone: 503-292-3685, <holmstro@europa.com>

Bill Givens, Sec. &: Publisher, 3850 Ashford Dr., Eugene, OR 97405 Phone (H): 541-465-9311 <Lbanks@ix.netcom.com>

Everett Jones, Treas., Phone: 440-729-4811

Ernie Martt, Founding Editor, Phone: 440-247-6712 <emartt@rrickert.com>

Page Contents

2 - 8 Display Periods from a Split-Path Epicyclic Train - part 1 by Graham White

9 -18 W5 Construction Details - Part 3 by Bob Holmstrom

19 Beat and Rate Relationships for Pendulum Clocks by Jerome Walker

20 Book Review: The Measurement of Time: Time, Frequency and the Atomic Clock By Claude Audoin and Bernard Guinot by Gordon Uber

The 2004 NAWCC Seminar will be held in Portland, Oregon October 28th - 30th. The seminar will be co-hosted by Pacific Northwest Chapter 31 & the Horological Science Chapter 161. The topic will be Science and Horology. The proposed display will be a "hands-on" laboratory for horological measurements which can be operated by seminar attendees. We are making good progress with speaker/topic selection but we are still looking for suggestions for speaker topics, speakers, experiments for the "laboratory" and volunteers to help with the seminar and seminar planning.

Bob Holmström

I will not be attending the National NAWCC Meeting in Charlotte this July. A room has been reserved for the AHS meeting and a request made to keep the room open after for the Horological Science Chapter to meet informally. If anyone has material they would like to present - let me know and I will make arrangements.

The deadline for material for the next issue is June 15th.

Above: Drawing from Apians cosmographicus Liber of 1533, showing how a nocturnal is used to tell the time at night from the Great Bear.

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