1088 
Sium angustifolium. 
Hyoscyamus niger, 
Melilotus officinalis. 
Goodyera repens. 
Neottia spiralis. 
Polygala vulgaris. 
Poterium Sanguisorba. 
Teesdalia nudicaulis. 
Medicago sativa. 
Trifolium procumbens. 
Rosa spinosissima. 
Hippuris vulgaris. 
Veronica Anagallis. 
Menyanthes trifoliata. 
Ranunculus Lingua. 
R. Flammula. 
R. aquatilis. 
Alisma Plantago. 
Alisma ranunculoides. 
Potamogeton natans. 
Valeriana officinalis. 
Cardamine amara. 
REPORT—1885. 
Nepeta Glechoma. 
Knautia arvensis. 
Saponaria officinalis. 
Ballota nigra. 
Verbascum Thapsus. 
Anthriscus sylvestris. 
Malva rotundifolia. 
Carduus acanthoides. 
Arum maculatum. 
Allium ursinum, 
Ranunculus Ficaria. 
R. bulbosus. 
Asperula odorata. 
Plantago Coronopus, 
Pyrola media. 
Vaccinium Vitis-ideea. 
V. Oxycoccos. 
Melampyrum sylvaticum. 
Trientalis europea. 
Alchemilla vulgaris. 
A, arvensis, 
A. alpina. 
8. On the Division and Conjugation of Spirogyra. 
By Dr. J. M. Macrarnane, F.RS_E, 
9. On a Microscopic Fungus in Fossil Wood, from Bowling. 
By Dr. J. M. Macrartane, F.R.S. EL. 
10. On a new Method of preparing the Epidermal Tissues of Pitcher Plants. 
By Dr. J. M. Macrartans, F.R.S.E. 
The author stated that the difficulty he had experienced in getting clean and 
large pieces of the epidermis from the different surfaces of pitchers induced him to 
try various methods of preparation. Maceration in caustic potash solution of 2 
wc. strength gave admirable results. The pitchers to be macerated were placed 
whole in beakers containing the solution and boiled over a Bunsen flame for from 
ten minutes to two hours. The pitchers of Nepenthes, if young and fresh, had 
both outer and inner epidermis loosened from the green cellular and fibro-vascular 
systems after about fifteen or twenty minutes boiling; old or dried pitchers required 
thirty to sixty minutes, By floating them afterwards in clean water both epi- 
dermal layers could be detached with great ease. Pitchers of Cephalotus were 
macerated after ten to twenty minutes treatment, but those of Sarracenia Heliam- 
phora and Darlingtonia, except when young and tender, required boiling for about 
two hours, with subsequent maceration for two or three weeks in water. In this 
way not only could long pieces be obtained for continuous microscopic examination 
of the surfaces, but bottled hand specimens of the entire inner epidermis of 
Nepenthes could be made, showing clearly to the naked eye the attractive, conduct- 
ing, and secreting surfaces, with associated glands. Bottled specimens and a series 
of microscopic preparations were exhibited and described, illustrating the paper. 
It was also pointed out that similar treatment of leaves for preparations of hairs, 
water and air stomata, &c., gave equally good results in many cases. 
11. On Aberdeenshire Plants as Food for Animals, 
By Witu14m Witson, Junr. 
