For as long as I remember, especially when I lived in Boston and Cambridge, I have sought refuge at the Arnold Arboretum of Harvard University in Jamaica Plain. I have been especially fascinated by the Larz Anderson Bonsai Collection, the oldest bonsai display in the United States. Inspired by this collection and by the bonsai displays at the New England Flower Show I began to dabble with bonsai 45 years ago. Having met and visited and tried to learn from many great bonsai masters, I feel that I have reached the level of Advanced Beginner. On Sunday, May 22, 2016, 1:00 - 3:00pm at the Arnold Arboretum there will be a program “Collections up Close, the Bonsai and Penjing Collection”. At this meeting Steven Schneider, Director of Operations, will introduce the new Martin Klein Collection, a comprehensive collection of Japanese, Chinese and North American species. I am honored and humbled to contribute to this oldest collection of bonsai in the United States. After the event I will be posting more information.

More information about this display:

More information about the Larz Anderson Bonsai Collection:


Allen Jamie Klein 1977 - 2016

With trembling hands and a broken heart I must share the dreadful news that our son Jamie (Allen or Al to many of you) Klein died unexpectedly July 20, 2016, just two days before his 39th birthday. I appreciate all of the cards, emails, etc.

In honor of Jamie, please remember the words of folksinger Bob Franke, "Let's be kind to each other, not forever but for real."

24 January 2018

Fifty years ago on a snowy day in a little rented cottage in Lexington, Massachusetts I started a small business, Klein Associates. I began by consulting for M.I.T., Benthos, Perry Submarine and others while planning the new venture. We moved to Salem, New Hampshire the following January and began design and manufacture of side scan sonar, sub-bottom profilers, magnetometers and towing accessories. I am proud that the company established a worldwide reputation for innovation, quality, fair dealings and customer service. Still going strong, the company is now

Congratulations to Peter Runciman and Giuseppe DiStefano on the issuance of U.S.Patent 11,585,911,Variable Geometry Sonar System and Method. This gap-filling sonar helps solve an issue that has long plagued side scan sonar operators.

MIND Technology Announces Sale of Klein Unit

THE WOODLANDS, Texas, Aug. 22, 2023 /PRNewswire/ -- MIND Technology, Inc. ("MIND" or the "Company") (Nasdaq: MIND) announced today that it has sold its Klein Marine Systems ("Klein") unit for cash consideration of $11.5 million to General Oceans, Inc. ("General Oceans"), a subsidiary of General Oceans AS.  Pursuant to the transaction, MIND has licensed its Spectral Ai software suite ("Spectral Ai") to General Oceans for certain applications, particularly side-scan sonar.  MIND and General Oceans have also entered into a Collaboration Agreement for the further development of Spectral Ai and potentially other software projects.  The transaction closed August 21, 2023.

Klein has served the offshore mapping and defense industries for over 50 years and will strengthen General Oceans' already substantial capabilities in subsea sensors, serving applications from seafloor mapping to mission-specific autonomous vehicles.