The Eclectic Medical Institute which Dr. Tilghman A. H. Lowe attended was only one of several. There were also the:
        California Eclectic Medical College in Los Angeles, 
        Hospital Medical College, Eclectic in Atlanta, Georgia,
        College of Eclectic Medicine and Surgery,
        Eclectic College of Physicians and Surgeons in Indianapolis,          
        King Eclectic Medical College in Des Moines,
        Eclectic Medical College of Indiana in Louisville Kentucky,          
        Eclectic Medical College of Maine in Lewiston,
        Worchester Medical College, Eclectic in Massachusetts,              
        Michigan Eclectic Medical College in Detroit,
        Eclectic Medical University of Kansas City,
        Lincoln Medical College, Eclectic in Nebraska,
        Eclectic Medical College of the City of New York,
        Randolph Eclectic Medical Institute in Rochester,
        American Eclectic Medical College in Cincinnati,
        Eclectic Medical College of Pennsylvania in Philadelphia,
        Eclectic Medical Institute in Memphis,
        Wisconsin Eclectic Medical School in Milwaukee
So one can conclude that the word Eclectic probably meant something at one time.

 A quick look at the history of the Eclectic Medical Schools shows they were responsible for changing medicine in the United States from the dominate British Rationalist system.  They systematized the knowledge of Native Americans and other “root” doctors and experimented many times on themselves to obtain information on what certain plants and plant compounds would accomplish when administered to humans. Take five minutes and read the following page for an interesting background on something that was largely obliterated by it’s competition.

    http://doctorschar.com/archives/eclectic-school-of-medicine/

I’ve found three Eclectic Physicians who wrote books about traveling to the center of the earth. Dr. Tilghman A. Howard Lowe, Dr. John Uri Lloyd and Dr. Cyrus Reed Teed.
Did the idea carry some special meaning? Did their experimentation cause some type of mental aberration? Did these men ingest compounds which actually caused them to “go inside” in the meaning of investigating the interior landscape of the mind? Did they expand the normal range of consciousness and use the idea of traveling into the interior of the earth to explain traveling inside of their own minds? Were there plant compounds which decreased the power of their egos or changed the usual human “me first” perspective to one of compassion and consideration for their fellow man? With the acquisition and publication of some of these ideas, these physicians might be ostracized, ridiculed or literally “road out of town on a rail”.  So they wrote a book of fiction.

    What made me suspicious is that when Dr. John Uri Lloyd reflected on his writings he was adamant that he wrote, just to attempt to sell to “fictional readers”, but Lloyd actually writes about transcending the physical realm. Going inside. Some of the same ideas and approaches exist in Nequa.