152 



tfquatie filU 



ation for ferns and woodland plants. A 

 brief list of suitable plans follows : 



Ferns. Wood fern (Dryopteris spinu- 

 loses), Shield fern (D. marginalis) , Crest- 

 ed fern (D. cristatn), Bracken (Pteris 

 aquilina), Maiden Hair (Adiantum peda- 

 tum), Christmas fern (Polystichum 

 acrostichoides) , Beech fern {Phegopteris 

 hexagonoptera) and Sensitive fern 

 (Onoclea sensibilis). 



Shrubs. Wild Azalea {Azalea nudi- 

 flora), Rhododendrons (Rhododendron 

 sp.), Spice bush (Benzoin aestivale) and 

 Laurel (Kalmia latifolia). 



Herbaceous Plants. Spring Beauty 

 (Claytonia virginica), White, Purple and 

 Yellow Violets (Viola sp.), Day Lily 

 (Hemerocallis fulva), Tiger Lily (Lilium 

 tigrinum), Yellow Adder's Tongue (Bry- 

 thronium americanuvn) , Pink Lady's 

 Slipper (Cypripedium acaule), Partridge 

 Berry (Mitchella repens), Jack-in-the- 

 Pulpit (Arisaema triphyllum) , Spotted 

 W'intergreen or Pipsissewa (Chimaphila 

 maculata) , Wood Anemone (Anemone 

 quinguef olio) and Hepatica (Hepatica 

 triloba). 



Those named are among the best for 

 the purpose, either because of their hard- 

 iness, beauty or the ease by which they 

 may be obtained. Detailed descriptions, 

 natural habitats and range, and sugges- 

 tions for cultivation will be found in wild 

 flower guides and horticultural hand- 

 books. Mosses and lichen-grown logs 

 add to the general attractiveness of the 

 wild flower garden. 



A rather unusual addition to the terra- 

 rium is possible if a sand or mud bank is 

 prepared along one side of the cement 

 pool, the animal being none other than 

 the familiar Fiddler Crab (Gelasimus 

 sp.) This can be collected in almost any 

 salt marsh along the New Jersey coast, 

 and will do fairly well in fresh water; 

 better if it can be made slightly brackish. 

 They present a most ludicrous appearance 



as they run along sidewise, waving the 

 one gigantic claw frantically, as if calling 

 the world to see something of crab in- 

 terest. The common freshwater crayfish 

 (Cambarus sp.) can more readily be kept 

 in the same manner. Raw beef and earth- 

 worms will form their principal foods. 



The fence surrounding the garden 

 should be made quite tight at the base, as 

 otherwise some of the creatures might 

 wander from the premises. For this rea- 

 son our harmless snakes have been 

 omitted from the discussion. 



If the lawn is kept in the conventional 

 fashion, it should be gone over with a 

 rake before mowing, to prevent a possible 

 violent death of some of the animals. 

 Frogs are prone to rest or search for food 

 in the open grass adjacent to their watery 

 home. 



Work on modifications of this garden 

 terrarium, to conform to individual con- 

 ditions, will mean many delightful hours 

 at home and in the field, and cannot fail 

 to inculcate the many sides of nature. 



To enable migratory fish to pass such 

 barriers as waterfalls and dams when 

 ascending a river to spawn, the Canadian 

 Commissioner of Fisheries has developed 

 an elevator which is apparently practica- 

 ble. It has been placed in service at a 

 24-foot fall in the St. Croix River, N. B., 

 and is operating successfully, says Popu- 

 lar Mechanics Magazine. 



In part, the device consists of a verti- 

 cal shaft erected several feet from the 

 falls. Guides, or walls, radiate from both 

 sides of the structure to the opposite 

 banks of the stream, so that fish are led 

 to it. A cage in which the latter are trap- 

 ped and carried to the top of the shaft, 

 where they are automatically dumped 

 into a sluiceway and discharged into the 

 water on the upstream side of the barrier, 

 is hoisted by means of a counterpoise 

 tank, which is periodically filled with 



