Park Forest Star Newspaper Archives Jul 26 1984, Page 28

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Park Forest Star (Newspaper) - July 26, 1984, Park Forest, Illinois C-6 a the Star thursday july 26, 1984 natures Way by John m. Elliott for Young and old alike one of the favorite delights of a summer evening is the firefly show. These remarkable insects display their lights in the warm dusk from june through August but Are most prominent in july. Both a a firefly and another common name a lightning Bug a Are Misnomer since these insects Are not flies or bugs but beetles of the family lamp fridae. Only a few species Are found in the Eastern ., and some of the most common do not produce Light. Firefly Light like other forms of organic Light produced by fungi bacteria and other invertebrates has often been called phosphorescence. Phosphorous is not directly involved so photogenic a Light generating a is a better term. Photogenic decay organisms Are common As Are Many Light producing invertebrates in the oceans. Of land insects found in our Region Only the fireflies some gnat larvae and a few springtails Are photogenic. Fireflies Are unique in being Able to control their Light the others glow constantly. Light is produced in the firefly a Abdomen when a substance called luciferin is oxidized. An enzyme Luciferase must be present to trigger this poorly understood chemical reaction. The process is from 90 to too percent efficient As compared to about to percent efficiency of an Ordinary incandescent bulb. Uric acid crystals in the cells make a Chalky White reflective surface in the upper layer of the Light producing Structure. The lower photogenic layer is Yellowish Luminous and Well supplied with Trachea to bring in oxygen. The Energy Transfer compound at must also be present and the process is controlled by nerve impulses. Larve of most fireflies Are also photogenic and Are called Glowworm. They Are secretive and not often seen unless searched for. Even the eggs and pupae May glow slightly. Females of most fireflies Are flightless and Are also sometimes called Glowworm. They Flash from grass or other vegetation close to the ground. In Many species the Flash of the females is much weaker than that of males. Flashing of fireflies serves As a sexual signal in our common species allowing the flying males to find females. The Flash pattern of each species is distinctive. A female will respond to the proper Flash with a return Flash at a specific interval of time and that time Gap May be As important As Flash pattern in separating the species. At one time it was thought there were Only about half a dozen species of fireflies in the Eastern After studying Flash patterns entomologists have identified Over 20 species Many of which Are almost identical in outward appearance. Most of our smaller fireflies usually half an Inch Long or less Are of the Genus Plotinus. Several common species come out around dusk and Flash with a Yellowish Light until about an hour after dark. They Are often found around lawns and cultivated Fields. Larger fireflies Are mostly in the Genus Turis. Those Are common in Trees and Brush often flying considerably higher above the ground than the Plotinus species. Most have a whitish or bluish Light and Many Flash later in the evening Well after dark. Firefly larvae Are predators on other Small insects and invertebrates. Many adults do not eat at All most of those that do feed on nectar or pollen. Females of at least one species of Turis have been found to imitate the flashes of Plotinus species luring in males which they capture and eat. Discovery of mimicry and predation in fireflies opened a whole new set of questions about evolution of photo genesis and relationships Between the different species. In Many ways fireflies remain mysterious a magic part of the natural world of our Cook county Forest preserves Parks and Back Yards. How christians differ Sermon topic the Rev. Gordon reefs Sermon sunday at the to a m. Service at first presbyterian Church in Chicago Heights will be a How Are christians different a Lois Harris will deliver the children a Sermon and Laura and Steve Hodges will provide music. Church for children age four through the third Grade and Nursery care will be available. More information is available by telephoning the Church office at 481-3754. Open House today at Faith tots school an open House for new and prospective students and their parents will be at 7 30 . Today at Faith United protestant churches prekindergarten to Hemlock Street Park Forest. Children and parents will be Able to tour the school meet director Joanne Riedel and teachers Marge Trayser and Peggy Wing and ask questions. Registration also May be completed at that time. To qualify a child must be five years of age by december 31, 1984. Enrolment is limited to 20 children. Information is available by telephoning Mary Beth Valenti at 748-3139. Investors tap software tools continued from Page b-7 in the Book a Stock selection by Jeremy c. And Robert w. Jenks published this year by John Wiley amp sons inc. You can use it with an on line data base to retrieve the Stock quotes necessary or you can enter them by hand while Reading them from newspaper Stock tables. Compared with Many of the other programs available a Stock selection is bargain priced. If you re willing to take the time to Type in the 44-Page-Long Basic program published in the Book it la Only Cost you 117.95 but if you a rather spend your computer time analysing stocks than typing program lines Wiley has the program available on disk for $49.95. One feature of the program is a routine that produces scatter Grams comparing stocks by any two of nine variables such As Price earnings ratio growth yields Market value. It works in the computers text Mode and can be printed on any Printer. The value of scatter Grams is that they easily identify companies that lie outside the Norm. Another inexpensive program available for Kay Osborne Xerox and other computers that run the pm operating system is comp Chart a Stock charting program that does not require graphics Cap ability to run. The program published by Neztek cd industries . Box 46116, Hollywood calif., 90046, plots three moving averages covering the last 72 trading Days. The Price is $99.95, and the user types in the Quot data required to plot the averages. Quot in hard copy of the charts can be made on the computers Printer. A it the Sunder certified personal investor program for Apple ii series and ism pc computers will track your portfolio of up to 150 stocks and print out the required tax reports each year. It Sells for $149.95 and is published by Sunder software corporation 3000 Pearl Street Boulder colo., 80381. Portfolio analysis is but one of several programs on a Home financial software package by financial author Andrew Tobias. Called a managing your Money a the package has programs for budgeting Check Book management tax estimation life insurance calculations a balance Sheet and a financial reminder Calendar. Published by Micro education corp. Of America at 265 Riverside Avenue Westport conn., 06880, the $195 set of programs runs on ism Apple Commodore 64 and atari computers. Computer file is distributed by the los Angeles times Syndicate says on any Itam in our agora almost too of a t0�. Goo�1 Sci i mob Rob i Tutti 50 this Lucky Buck in Worth soc toward the Purchase of any Cingle item priced my to s2j0 in our entire Torel subject to Illinois Sale Tex on regular Price. 90 this Lucky Buck in Worth Hon toward the pure eee of any Cingle hem a toed $3.00 to som in our entire subject to Illinois Salea tax on regular Price. Ruth Kib ill Quot pm Thia Lucky Buck in Worth 32.00 toward the pure eee of any Bingle item priced 36.00 to 38 join our entire of any Torel subject to Illinois sales tax on regular Price. This Lucky Buckie Worth $3.00 toward the of any Cingle hem priced $10.00 to $11 entire Torel subject to Illinois sales tax on regular Price. Ace this Lucky Buckie Worth $6.00 toward the i of any single hem priced 320.00 to 348.1 entire Torel subject to Illinois sales tax on regular Price a to this Lucky Buck is Worth $10.00 the Purchase of any single hem $60.00 to $88.80 in our entire Storel subject to Illinois sales tax on regular Price. To this Lucky Buckie Worth $20.00 toward the Purchase of any single hem priced $100.00 to $188.88 in our entire Torel subject to Illinois sales tax on regular Price. 90130 this Lucky Buckie Worth 330.00 toward the Purchase of any Cingle hem priced $200jo or More in our entire Torel subject to Illinois sales tax on regular Price see your helpful hardware Man at these locations. All merchandise subject to Stock on hand we Reserve the right to limit quantities Joe Orr amp Dixie Hwy Chicago Heights 755-0880 budget Center store hours monday thru Friday i am to 9 pm saturday a am to 6 pm 8un0ay 8 am to a pm visa t r

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