STUDIES ON MUSEUMS AND KINDRED INSTITUTIONS, 



575 



the .same ))iiilding-, these will not damage it b}^ causing- vibration. 

 This has vei'}' generally been avoided in America. 1 am not favorably 

 disposed to the combining- of a technical school and its many laboratories 

 in the same building- with a museum. The windows of the building 

 can not be opened, and the collection has the i-are advantage in that 

 no dust is brought in wdth the air to damage them; neither does any 

 come in through the doors, since the pressure of air on the interior is 

 somewhat greater than that from without. This system of ventilation 

 is known as Kej^'s improved plenum method. It was a surprise to me 

 that the authorities in the Liverpool, as well as in the Glasgow 

 Museum, did not know that this same installation existed in the other 



Fii.;. 107.— Free rublic Mu>ciiiii-., Livni,,,,,!. due ,,f [\u- I(.ii,^iiuiliiial ^;a 



building {••¥" in lig, 1U4). 



ii ilir hi«Li' Hour in new 



museum. I repeat that the two museums of Great Britain which I 

 have mentioned excel in this respect all museums of the world, and I 

 earnestly recommend that we adopt this arrangement and do not 

 remain in the background. The Liverpool Museum appears to have 

 reached this in connection with the construction of the technical 

 school, while that of the museum in Glasgow was carried out inde- 

 pendently. 



1 notice in a printed letter of the firm of William Key (works for 

 ventilating and warming by mechanical means, Havelock street, Glas- 

 gow) that such installations have already })een introduced into a great 

 number of schools, hospitals, factories, hotels, private dwellings. 



