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“WITH ISINGLASS curtains y’ can roll right down/In case there’s a change in the weather.”—“The Surrey With The Fringe On Top,” from Oklahoma!, 1943.
What do you suppose “isinglass” was?
Of course, it’s evident from context that isinglass was some sort of early transparent material for side curtains, but this only begs the question. In fact, the more one looks into isinglass, the less clear it becomes. Yet, having owned a car with side curtains (see www.wp.me/p2ETap-Vq), I am delighted to offer these observations.
In its primary definition, isinglass is a dried swim bladder of fish, primarily from sturgeon or cod. One of its uses is as a “fining,” a clarification agent, in the production of beer and wine. In fact, some vegetarians object to beers (such as Guinness and most stouts) that have been subjected to this process—it’s apparently acceptable with pescetarians (seafoods okay/other flesh not). Also, Kosher wines must use other than sturgeon isinglass because this fish is treif (Yiddish for “not kosher”).
Having cited Yiddish—and what an odd turn of events, eh?—I return to the lyrics in what might be their original form. Richard Rodgers and Oscar Hammerstein II wrote the music and lyrics, respectively, for Oklahoma!, and both of these gentlemen had some Jewish heritage.
In a somewhat iconoclastic but entertaining analysis, entertainment authority Danny Miller has suggested that these two might have originally composed lyrics in Yiddish, then reworked them in English. Consult http://goo.gl/dq9BM to hear “Surrey With The Fringe On Top” sung in this language. I catch no specific mention of isinglass, but maybe you will.
A second meaning for isinglass relates to thin, transparent sheets of mica, a silicate mineral that sounds a lot closer to side curtain material.
Peepholes in boilers, stoves and the like used sheet mica because it was less likely to shatter than glass when exposed to extreme temperatures. It can stand up to 1650 degrees Fahrenheit, by which temperature, for example, sterling silver has melted.
But isn’t mica a bit over the moon for simple side curtains, especially for those that “roll right down”?
On the other hand, early side curtains didn’t have wide expanses of transparency. Cars of the Brass Era (pre-1915) typically had leather or canvas side curtains with only small horizontal or vertical slots of (unspecified) transparent material.
Familiar names like Plexiglas (brought to market by German/American company Röhm and Haas in 1933), Lucite (1936) and Perspex are all transparent thermoplastics of the PMMA (polymethyl methacrylate) family. Though Rodgers and Hammerstein might have known of these products when they wrote Oklahoma! in 1943, the names would have been anachronistic in its 1906 setting.
Today, Isinglass, Inc., founded in 2004, is a producer of buffet, banquet and tabletop presentation ware. And boating people talk about “Eising Glass” curtains, though this seems to be just a corruption of isinglass.
Eising Glass is not to be confused with Dr. Eugene H. Eising. In Popular Science, December 1932, he was written up for exposing ordinary petroleum jelly to ultraviolet light, thereby creating an entirely new kind of healing agent. See http://goo.gl/swkoI. The irradiated compound, “Radolatum,” was proposed for treating burns, boils, scalds—and even possibly cancer. “When more research has thrown full light on the ray phenomena, medicine will have new weapons to battle disease.”
And haven’t we come a long way from that surrey? ds
© Dennis Simanaitis, SimanaitisSays.com, 2013