181)9] 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- 

 logfical text-books, at the same time learning- to recog-nize 

 with care the different tissue systems both by means of the 

 elements and the reactions the elements g-ive with reag^ents. 

 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 g-lands ; the nature and disposi- 

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

 of g-ranules, 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- 

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

 dena, Pitruame g-rande in Mexico, Estuaire de la Kance in 

 France, Newcastle in Barbados, Pornic pelag-ique in 

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

 chusetts, La Guadeloupe with Meridion circulare, Tabella- 

 ria flocculosa, Surirella gemma and Pleurosig-ma ang-ula- 

 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, Eng-land. 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 



