1899] MICROSCOPICAL JOURNAL. 67 



parenchyma, endodermis, pericycle, phloem, xylem, medul- 

 lary rays and pith as well as the varieties of stereom. 

 He should then make himself acquainted with the anatomi- 

 cal characteristics of roots, stems, leaves, flowers, fruits 

 and seeds as exhibited in the types found in the usual bio- 

 logical text-books, at the same time learning- to recognize 

 with care the different tissue systems both by means of the 

 elements and the reactions the elements give with reagents. 

 Then he should pass on to study in detail the various pecu- 

 liarities of the different cells ; the varieties of thickening 

 of epidermal cells, and the appearance of their walls in sur- 

 face view ; the forms and sculpturing of lignified elements, 

 stone-cells, vessels, fibres ; the frequency, characters, and 

 disposition of hairs and glands ; the nature and disposi- 

 tion of cell contents, crystals, starch and its size and form 

 of granules, inulin, tannin, resins, and oils. 



MISCELLANEOUS. 



Objects. — Foraminiferous sands, unmounted, from Mau- 

 ritius, Aden, India, Montereau, Java, Sicily, Paris basin, 

 Cyprus, Cherbourg, Beauchamp, Malstricht, etc., 24 pack- 

 ages for $1.00; or, cleaned unmounted diatoms, from Mo- 

 dena, Pitruame grande in Mexico, Estuaire de la Ranee in 

 France, Newcastle in Barbados, Pornic pelagique in 

 France, Cwm Bychan in Wales, Godfry's bog - in Massa- 

 chusetts, La Guadeloupe with Meridion circulare, Tabella- 

 ria fiocculosa, Surirella gemma and Pleurosigma angula- 

 tum, $1.00 per series of 12 tubes. Also 5 series of micro- 

 fungi at 50 cents each and 7 series of wood sections at 

 50 cents each series can be had from W. West, 15 Horton 

 lane, Bradford, England. They can be brought within the 

 Chinese wall as specimens of natural history objects free 

 of duty according to the law. 



A Printer's Ink that will stand washing- is made from 5 

 parts acetic acid with one part lunar caustic dissolved 

 herein. After it has stood 24 hours, add 20 parts copalt 

 varnish and a little lamp-black. The lunar caustic gives it 

 a brown shade which may be replaced by green if the 



