95 



The use of spectroscope to analyze wave lengths was shown. Row 

 upon row of tubes and flasks were seen on trays in the greenhouse. 

 The very young stages were in light positions of low intensity ; the 

 older plants were in brighter light, according to their maturity. 



Visitors in the laboratory were shown working charts, graphs, 

 and records, as well as a filing system containing the histories of each 

 tube and flask. Three methods for determining the pH of solution 

 were of interest. 



In the house, guests could observe under two microscopes and 

 several lenses, such materials as germinating orchid seeds, moss pro- 

 tonema, fern prothallia and young sporophytes, and nodules on 

 clover roots. Displays of living plants in culture tubes and flasks 

 were examined at leisure. The development of ferns was shown 

 from the spores and prothallia to sporophytes of different ages. 

 Great interest was shown in the proliferation of Polypodium aureum. 

 Among the native ferns were: walking fern (Camptosorus rhiso- 

 phyllus), climbing fern (Lygodium palmatum), purple cliff brake 

 {Pellaea atropurpurea) , Hart's tongue {Scolopendrium vulgar e), 

 Dryopteris Goldiana, Dryopteris marginalis, and maidenhair spleen- 

 wort (Asplenium trichomanes) . Another series showed the develop- 

 ment of various types of orchids. One round flask, containing a hy- 

 brid Billbergia or flowering pineapple, had been completely sealed 

 for six years. 



In one room an original humidified bay window, enclosed in 

 glass, contained large ferns growing in deep soil and orchids in hang- 

 ing pots. An outdoor bird feeding shelf was built into the window ; 

 below set into recesses, were two aquaria. The window and aquaria 

 were heated by a concealed radiator, and were artistically lighted. 



The pleasant afternoon was brought to a close with a television 

 program and refreshments. 



MiSTAiRE Laboratories Clara S. Hires 



152 Glen Avenue 



MiLLBURN, N. J. 



